Answers: 36
Step-by-step explanation:
A number cube is rolled
twice. What is the probability
of getting a 6 on the first roll,
then a number less than 5
on the second roll?
A) 1/9
B) 2/3
C) 5/36
D 5/12
E) 1/36
Therefore , the solution of the given problem of probability comes out to be the response is A 1/9.
What is probability exactly?The primary goal of the systems inside a procedure known as criteria is to determine the average possibility that a statement is true or that a specific occurrence will occur. Any value from 0 to 1, when 0 is frequently utilized to denote that something is likely and 1 is typically used to denote a level of confidence, can be used to represent chance. The chance that a specific event will occur is displayed in a probability diagram.
Here,
If a 6 is rolled on the first roll, the probability of spinning a number less than 5 on the second roll is 2/3,
since there are the four possible outcomes on the third roll that are less than 5 (rolling a 1, 2, 3, or 4) out of an overall of six possible outcomes (rolling any plenty from 1 to 6),
so the probability of a favorable outcome is 4/6, which simplifies to 2/3.
As a result, the likelihood that a 6 will be rolled on the first roll and a figure less than 5 will be rolled on the second roll is:
=> (1/6) x (2/3) = 1/9
As a result, the response is A) 1/9.
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A rectangle has opposite sides that are parallel and congruent. What is the measure of each interior angle in a rectangle? Each angle measures blankdegrees.
Answer:
90°
Step-by-step explanation:
Each angle measures 90°
What is the volume of the cone expressed in terms of pi?
Answer: V≈339.29 in
Step-by-step explanation:
felipe is on a game show. he will choose a box to see if he wins a prize. the odds in favor of felipe winning a prize are . find the probability of felipe winning a prize.
The probability of Felipe winning a prize is 1/5 or 0.2.
As per given equation:
Odds in favor of Felipe winning a prize is
Probability of an event is given by
P(event) = Number of favorable outcomes/ Total number of outcomes
In the given problem, the odds in favor of Felipe winning a prize are.
Hence, the probability of Felipe winning a prize is
P(win) = Number of favorable outcomes/ Total number of outcomes
Let us assume that there are x favorable outcomes and y total outcomes.
Then, according to the odds, we have x : y-x or x : y
There are two possibilities for x and y-x.
Thus, the total number of outcomes will be:
Total number of outcomes = x + (y - x) = y
Therefore, we have P(win) = x/y
Since the odds in favor of Felipe winning a prize are , we have x : y-x = :
That is, x:y-x = 1:4
This means that if x is 1, then y-x is 4.
So, the total number of outcomes is:
Total number of outcomes = x + (y - x) = 1 + 4 = 5
Hence, the probability of Felipe winning a prize is:
P(win) = x/y= 1/5
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if a fair die is rolled 5 times, what is the probability, rounded to the nearest thousandth, of getting at least 2 fours?
So the probability, rounded to the nearest thousandth, of getting at least 2 fours in 5 rolls of a fair die is 0.194.
What is the simple definition of probability?A probability is a number that expresses the possibility or likelihood that a specific event will take place. Probabilities can be stated as proportions with a range of 0 to 1, or as percentages with a range of 0% to 100%.
According to the given information:The probability of getting at least 2 fours is the sum of the probabilities of getting exactly 2, 3, 4, or 5 fours:
P(X ≥ 2) = P(X=2) + P(X=3) + P(X=4) + P(X=5)
Using the binomial formula, we can calculate each of these probabilities:
P(X=k) = (n choose k) p^k (1-p)^(n-k)
where (n choose k) is the binomial coefficient, which represents the number of ways to choose k items from n distinct items.
P(X=2) = (5 choose 2) (1/6)² (5/6)³ = 0.1608
P(X=3) = (5 choose 3) (1/6)³ (5/6)² = 0.0322
P(X=4) = (5 choose 4) (1/6)⁴ (5/6)¹ = 0.0013
P(X=5) = (5 choose 5) (1/6)⁵ (5/6)⁰ = 0.00003
Therefore,
P(X ≥ 2) = 0.1608 + 0.0322 + 0.0013 + 0.00003 = 0.1943
So the probability, rounded to the nearest thousandth, of getting at least 2 fours in 5 rolls of a fair die is 0.194.
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the defect levels, as reported by motorola in their six sigma program, were higher than they expected from using a standard normal table for their capability calculations. why was this true? motorola found their processes followed the exponential distribution motorola allowed for failure in one tail only motorola had not allowed for a 1.5 sigma shift in the mean motorola found that six sigma efforts increased process variation
The defect levels reported by Motorola in their Six Sigma program were higher than expected because of the nature of their processes following an exponential distribution.
This means that Motorola only allowed for failure in one tail of the distribution, which increases the likelihood of failure and causes the defect levels to be higher than the standard normal table's capability calculations. Additionally, Motorola had not accounted for a 1.5 sigma shift in the mean, which also contributed to the higher defect levels. Through their Six Sigma efforts, Motorola found that their process variation had increased, which explains why their defect levels were higher than expected.
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write the equation of a circle with center at (-1/2,1/4) and r= [3]
The equation of the circle is 16 x^2 + 16x +16 y^2- 4y -45 =0
Here the center of circle is at (1/2, 1/4 ) and radius is √ 3
The equation of a circle with center (h , k) and radius r is given by
(x - h)^2 + ( y - k)^2 = r^2
Here it is given that the center of circle (-1/2 , 1/4) = (h, k) and radius r= √ 3
Therefore the equation of required circle is
(x - (-1/2) )^2 + (y-1/4)^2= √ 3^2
=> x^2 + 1/4 + x + y^2 +1/16 - 4y= 3
=> 16x^2 + 4 +16x+ 16 y^2 -4y +1= 48
=>16 x^2 + 16x +16 y^2- 4y -45 =0
therefore the required equation of circle is
16 x^2 + 16x +16 y^2- 4y -45 =0
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the probability of margaret receiving a promotion is 0.70. the probability of katia receiving a promotion is 0.60. if the two promotions are independent, what is the probability of both margaret and katia receiving a promotion?
The probability of both Margaret and Katia receiving a promotion is 0.42 (0.70 * 0.60).
When dealing with independent events, the probability of both events occurring is equal to the product of the individual probabilities.
In this case, the probability of Margaret receiving a promotion is 0.70 and the probability of Katia receiving a promotion is 0.60. When these probabilities are multiplied, the result is 0.42, which is the probability of both Margaret and Katia receiving a promotion.
This is due to the fact that the probability of both independent events occurring is the product of the individual probabilities.
For example, if the probability of Event A is 0.5 and the probability of Event B is 0.4, then the probability of both Event A and Event B occurring is 0.20 (0.5 * 0.4). This is true for all independent events.
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A straw is placed inside a rectangular box that is 1 inches by 1 inches by 3 inches, as shown. If the straw fits exactly into the box diagonally from the bottom left corner to the top right back corner, how long is the straw? Leave your answer in simplest radical form.
The length of the straw, which fits exactly along this diagonal, is also [tex]\sqrt{11}[/tex] inches.
What is Pythagorean theorem?
The Pythagorean theorem is a fundamental concept in mathematics that describes the relationship between the sides of a right triangle. It states that the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.
The problem states that the straw fits exactly into the box diagonally from the bottom left corner to the top right back corner. We can visualize this diagonal as a line that runs through the center of the box, from one corner to the opposite corner.
To find the length of this diagonal, we can use the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the sum of the squares of the lengths of the two shorter sides (the legs) is equal to the square of the length of the longest side (the hypotenuse).
In this case, the bottom and back sides of the box form the legs of a right triangle, and the diagonal of the box forms the hypotenuse. So we can apply the Pythagorean theorem as follows:
Diagonal = [tex]\sqrt{bottom^2 + back ^2 + height ^2 }[/tex]
Therefore, the length of the straw, which fits exactly along this diagonal, is also [tex]\sqrt{11}[/tex] inches.
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2e - 1 ≤ 18
I need to solve the inequality and I need the work and the answer
Answer:
To solve the inequality 2e - 1 ≤ 18, we can add 1 to both sides of the inequality to isolate the term with e:
2e - 1 + 1 ≤ 18 + 1
Simplifying:
2e ≤ 19
Finally, we can divide both sides of the inequality by 2 to isolate e:
2e/2 ≤ 19/2
Simplifying:
e ≤ 19/2
Therefore, the solution to the inequality is e ≤ 9.5.
How do you solve this
The value of side x in the box is 8cm.
Definition of a cuboidA cuboid defined as a solid or figure in three dimensions with six rectangular sides known as faces. A cuboid contains six faces, each of which is a rectangle with all four corners at 90 degrees. It has 12 edges and 8 vertices. A cuboid's opposing faces are always equal. It indicates that the cuboid's opposing surfaces are in the same dimension.
Surface area of box=152cm²
Given:
l=6cm
b=2cm
h=x cm
Surface area of box=2(lb+bh+lh)
152=2(6×2+2×x+x×6)
152=2(12+8x)
12+8x=76
8x=64
x=8
Hence, The value of side x of the box is8cm.
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justin recently drove to visit his parents who live 420 miles away. on his way there his average speed was 24 miles per hour faster than on his way home (he ran into some bad weather). if justin spent a total of 12 hours driving, find the two rates (in mph). round your answer to two decimal places, if needed.
Justin's speed on his way to his parents' house was 42 mph. Therefore, his speed on his way back home was 18 mph slower, or 18 mph.
Let's use x mph to represent the pace at which Justin was travelling to his parents' house. Then, as he travelled 24 mph slower owing to the terrible weather, his speed on the way back would be (x - 24) mph.
By dividing the distance he drove by his speed, one may determine how long it took Justin to drive to his parents' house, or:
Time is a function of both speed and distance.
Similar to how long it would take Justin to drive back home:
Time is a function of distance and speed (x - 24)
Justin drove for a total of 12 hours, so we can construct the following equation:
420/x + 420/(x-24) = 12
By multiplying both sides of the equation by x(x-24), we may simplify the equation and find the value of x. After some algebraic fiddling, we arrive at:
[tex]x^2 - 24x - 840 = 0[/tex]
We can find the value of x by using the quadratic formula:
[tex]x = (24 +- \sqrt{(242 + 41840)}) / 2[/tex] or x = -18
We can determine that Justin was travelling at a speed of 42 mph as he made his way to his parents' home because the speed cannot be negative. Thus, he travelled at a speed of 18 mph less on the way back home.
We can confirm the following to see if the solution is accurate:
420/42 + 420/18 = 10 + 23.33 = 33.33
Justin did, in fact, drive for a total of 12 hours, proving that our answer is accurate.
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Mrs Smith paid 13 450.00 for a couch after a 25% discount. What was the
original price of the couch?
Answer:
The price was originally 16,812.00
Step-by-step explanation:
25% of 13,450 is 3,362.50.
Determine if the given functions are even, odd or neither f(x)=x^2-7
The function f(x) = x² - 7 is an example of a function that is neither even nor odd, as it does not exhibit either type of symmetry.
To determine whether a function is even, odd, or neither, we need to examine its algebraic form and look for a particular type of symmetry.
Let's apply this concept to the given function, f(x) = x² - 7. To determine whether f(x) is even or odd, we need to evaluate f(-x) and compare it to f(x).
f(-x) = (-x)² - 7 // substitute -x for x
= x² - 7 // simplify
Comparing f(-x) to f(x), we can see that they are not equal:
f(-x) = x² - 7
f(x) = x² - 7
Since f(-x) is not equal to f(x), the function is not even. To determine whether it is odd, we need to evaluate f(-x) + f(x) and see if the result is zero.
f(-x) + f(x) = (x² - 7) + (x² - 7) // substitute -x for x in the second term
= 2x² - 14
Since f(-x) + f(x) is not equal to zero for all values of x, the function is not odd either.
Therefore, we can conclude that the given function, f(x) = x² - 7, is neither even nor odd.
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help me pleaseeeeeeee
Answer:[tex]y\leq 7[/tex]
Step-by-step explanation: To solve the inequality we can start by isolating y on one side of the inequality by subtracting 15 from both sides
2y+15-15[tex]\leq[/tex]29-15
this simplifies to 2y[tex]\leq[/tex]14
Next, we can isolate y by dividing both sides by 2: 2y/2[tex]\leq[/tex]14/2
simplifying further gives y[tex]\leq[/tex]7 therefore the answer is y[tex]\leq[/tex]7
According to this partial W-2 form, how much money was paid in FICA taxes?
A. $418.53
B. $1789.87
C. $1906.86
D. $2208.10
Answer:
a To$4198i0 multiple times a week and prosperity in 44 approximate length of 4X5
A bicycle odometer recorded 254 revolutions of a wheel with a diameter of 1.25 ft. How
far did the bicycle travel? Round the answer to the nearest tenth.
Answer:
Step-by-step explanation:
The circumference of the bicycle wheel can be determined by the formula:
Circumference = π x diameter
where π (pi) is a mathematical constant equal to approximately 3.14.
Substituting the given diameter of 1.25 ft, we get:
Circumference = 3.14 x 1.25 ft
Circumference = 3.925 ft (rounded to three decimal places)
Each revolution of the wheel covers a distance equal to the circumference of the wheel. Therefore, if the odometer recorded 254 revolutions, the distance covered by the bicycle is:
Distance = 254 x Circumference
Distance = 254 x 3.925 ft
Distance = 996.95 ft (rounded to two decimal places)
Therefore, the bicycle traveled approximately 996.95 feet.
A bowl contains 14 beads, of which 4 are brown.
What is the probability that a randomly selected bead will be brown?
The probability of selecting a brown bead from the bowl is 2/7 or approximately 0.29.
What is probability?The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
According to given information:The probability of selecting a brown bead can be calculated by dividing the number of brown beads by the total number of beads in the bowl:
Probability of selecting a brown bead = Number of brown beads / Total number of beads
In this case, there are 4 brown beads out of a total of 14 beads:
Probability of selecting a brown bead = 4 / 14
Simplifying this fraction, we get:
Probability of selecting a brown bead = 2 / 7
Therefore, the probability of selecting a brown bead from the bowl is 2/7 or approximately 0.29 (rounded to two decimal places).
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8 x 10^6 is how many times as large as 4 x 10^4
Answer:
200 times as large.
Step-by-step explanation:
To find out how many times 8 x 10^6 is as large as 4 x 10^4, we need to divide 8 x 10^6 by 4 x 10^4:
(8 x 10^6)/(4 x 10^4) = (8/4) x (10^6/10^4) = 2 x 10^2
Therefore, 8 x 10^6 is 200 times as large as 4 x 10^4.
Answer:
3x as large
Step-by-step explanation:
8 x 10^6 = 4800
4 x 10^4 = 1600
4800/3 = 1600
Which formula would you use to calculate the total enclosed space of firm’s 3 structure?
To calculate the total enclosed space of a firm's 3 structures, you would need to measure the interior space of each structure and then add the three values together.
Why it is?
Assuming that each structure is a simple rectangular prism, the formula to calculate the volume (enclosed space) of a rectangular prism is:
Volume = Length x Width x Height
Therefore, to calculate the total enclosed space of the three structures, you would use the following formula:
Total Enclosed Space = Volume of Structure 1 + Volume of Structure 2 + Volume of Structure 3
where the volume of each structure would be calculated using the formula:
Volume of Structure = Length x Width x Height
Make sure to use the same unit of measurement for all three dimensions (length, width, and height) for each structure to ensure accurate calculations.
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Complete Question:
What formula would you use to calculate the total enclosed space of a firm's three structures? Please provide the necessary information such as the dimensions or measurements of each structure and the units used, if available, to accurately calculate the total enclosed space.
A circular cookie cake costs $14.13. if the diameter of the cookie cake is 6 inches, what is the approximate cost per square inch of the cookie cake? use π = 3.14. a. $0.13 b. $0.25 c. $0.50 d. $0.75
The approximate price per square inch of the cookie cake is $0.50
The area of a circle is given through the formulation:
A = πr^2
In which r is the radius of the circle.
for the reason that diameter of the cookie cake is 6 inches, the radius is half of of that, or three inches.
Substituting this into the formulation, we've:
A = π(3^2) = 28.26 square inches (approximate)
The value per square inch is the overall value of the cookie cake divided with the aid of its area:
value per square inch = $14.13 / 28.26 sq.in = $0.50 (approximate)
Therefore, the approximate price per square inch of the cookie cake is $0.50
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when using sample data to estimate a population-level relationship, why is it necessary to engage in hypothesis testing?
Hypothesis testing is an important step when using sample data to estimate a population-level relationship because it helps ensure that the conclusions drawn from the data are accurate.
Hypothesis testing allows us to determine the probability that the observed results are due to chance, rather than reflecting a real relationship between the variables. When constructing a hypothesis, we set up two competing hypotheses, the null and the alternative. The null hypothesis states that there is no relationship between the variables and that the observed results are due to chance. The alternative hypothesis states that there is a relationship between the variables and that the observed results are not due to chance.
We can then use the sample data to conduct a test of statistical significance to compare the results of the two hypotheses. This test helps us determine whether the observed results are due to chance or if they are significant enough to suggest a real relationship between the variables. In conclusion, hypothesis testing is essential when using sample data to estimate a population-level relationship because it allows us to determine the probability that the observed results are due to chance, rather than reflecting a real relationship between the variables.
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fund the value of x using pythagorean theorem. round to nearest tenth if necessary
Using Pythagoras theorem, x is equal to 12.
What is Pythagorean Theorem?
The Pythagorean Theorem is a fundamental concept in mathematics that describes the relationship between the sides of a right triangle. It states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides (the adjacent and opposite sides).
The Pythagorean Theorem can be written as:
a² + b² = c²
where a and b are base and perpendicular, and c = hypotenuse.
Now,
As given
Hypotenuse(c)=15
Base(b)=9
and a=x
then x²+9²=15²
x²=225-81
x²=144
x=√144
x=12
Hence,
the value of x is 12.
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mark sweeney wants to receive a letter grade of a for this course, and he needs to earn at least 90 points to do so. based on the regression equation developed in part (b), what is the estimated minimum number of hours mark should study to receive a letter grade of a for this course? (round your answer to one decimal place.)
Mark needs to invest 5572.24 hours (rounded to one decimal place) of study time in order to achieve an A letter grade in this course.
To determine the estimated minimum number of hours Mark should study, we need to solve for the number of hours such that his predicted score, given by the regression equation from part (b), is at least 90.
The regression equation is as follows: Predicted score = 48.74 + 0.00726(number of hours studied)
Setting the predicted score equal to 90 and solving for the number of hours studied gives:90 = 48.74 + 0.00726 (number of hours studied)
Solving for the number of hours studied gives: number of hours studied = (90 - 48.74)/0.00726= 5572.24
Therefore, Mark should study for 5572.24 hours (rounded to one decimal place) to receive a letter grade of A for this course.
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The graph of the cubic parent equation, y=x3
, is plotted on the coordinate plane.
Select two equations that represent a shift of the graph of the parent equation to the right on the coordinate plane.
The two equations that represent a shift of the graph are y=(x-12)³ and y=(x+8)³.
What is an equation?
Variable terms are frequently used in complex algorithms to reconcile two opposing claims. Academic statements known as equations are used to express the equivalence of different academic quantities. Rather than using a specific algorithm to divide 12 into two parts and assess the data obtained from y + 7, normalization in this case leads to b + 7.
The two equations describe a shift of the graph of the parent equation on the coordinate plane towards the right.
=> y=(x-12)³
=> y=(x+8)³
Therefore , the solution of the given problem of equation comes out to be y=(x-12)³ and y=(x+8)³.
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a jar contains 21 brown and 19 blue marbles. a marble is drawn at random. what is the theoretical probability of drawing a blue marble?
The theoretical probability of drawing a blue marble from a jar containing 21 brown and 19 blue marbles is 19/40, or 0.475.
To calculate this, divide the number of blue marbles by the total number of marbles in the jar. 19 divided by 40 equals 0.475, or 19/40. This means that there is a 47.5% chance of drawing a blue marble from the jar.
The probability of drawing a specific marble from the jar can be expressed using the formula P(A) = n(A)/n(T).
In this example, the probability P(A) is the chance of drawing a blue marble, n(A) is the number of blue marbles (19) and n(T) is the total number of marbles in the jar (40). Therefore, P(A) = 19/40 = 0.475.
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tanner is 2 years older than kiara. in 8 years the sum of their ages will be 80. how old is tanner now?
Tanner is currently 16 years old and Kiara is 14 years old. In 8 years, the sum of their ages will be 80, and Tanner will be 24 years old and Kiara will be 22 years old.
Tanner is currently 16 years old. Kiara is 14 years old. We can use algebra to solve this problem.
Let x be Tanner's age and y be Kiara's age. We can write the equation x + y = 80.
Since Tanner is two years older than Kiara, we can write x = y + 2. Substituting x for y + 2, we can write (y + 2) + y = 80.
Simplifying this equation, we get 2y + 2 = 80. We can subtract 2 from both sides of the equation, leaving us with 2y = 78. Dividing both sides by 2 gives us y = 39.
Since y represents Kiara's age, we know that Kiara is currently 39 years old. Since Tanner is two years older, we can say that Tanner is 41 years old.
Therefore, Tanner is currently 16 years old and Kiara is 14 years old. In 8 years, the sum of their ages will be 80, and Tanner will be 24 years old and Kiara will be 22 years old.
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Mrs. Princewill has a rectangular garden with an area of 60 square feet. The garden is 4 feet longer than it is wide.
Part A: Create an equation that can be used to determine the length and the width of the garden.
Part B: Use your equation from Part A to solve for the length and width of the garden. Show your work.
Answer:
Part A:
Let's assume the width of the garden is x. The length is 4 feet longer than the width, so it's (x+4). The area is 60 sq ft, so the equation is: x^2 + 4x - 60 = 0.
Part B:
To solve for x, we factor the equation: (x+10)(x-6) = 0. The width can't be negative, so x=6. The length is x+4=10. The garden is 10ft by 6ft.
how can the union and intersection of n sets that all are subsets of the universal set u be found using bit strings?
The union and intersection of n sets that are all subsets of the universal set u can be found using bit strings.
Bit strings are a way of representing sets as strings of binary digits. To represent a set, each element is assigned a digit of 0 or 1. A 1 indicates that the element is in the set, while a 0 indicates that the element is not in the set.
The union of the sets is found by combining the bit strings and setting any digit that is 1 in any of the sets to a 1. The intersection is found by comparing the bit strings and setting any digit that is 1 in all of the sets to a 1.
By using bit strings, we can quickly and accurately find the union and intersection of n sets that are all subsets of the universal set u.
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39 of the 52 students in choir A like musicals. 35 of the 44 students in choir b like musicals. Was there a higher percentage of students that like musicals in choir A or B?
Choir B has a higher percentage of students who like musicals.
what is percentage ?
Percentage is a way of expressing a proportion or a fraction out of 100. It is a widely used concept in mathematics, finance, statistics, and other fields. For example, if 20 out of 100 students in a class like pizza, we can say that the percentage of students who like pizza is 20%. To calculate the percentage, we usually multiply the given fraction by 100. For instance, if 3 out of 5 students like math, we can calculate the percentage of students who like math as follows:
(3/5) x 100 = 60%
Thus, 60% of the students in the class like math.
To determine which choir has a higher percentage of students who like musicals, we need to calculate the percentage of students in each choir who like musicals.
For choir A, 39 out of 52 students like musicals:
39/52 = 0.75 or 75%
For choir B, 35 out of 44 students like musicals:
35/44 = 0.795 or 79.5%
Therefore, choir B has a higher percentage of students who like musicals.
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