A computer selects a number
X
X
from 4 to 11 randomly and uniformly. Round all answers to 4 decimal places where possible.
What is the distribution of
X
X
?
X
X
~ U(,)
Suppose that the computer randomly picks 35 such numbers. What is the distribution of
¯
x
x
¯
for this selection of numbers.
¯
x
x
¯
~ N(,)
What is the probability that the average of 35 numbers will be less than 7.9?

Answers

Answer 1

Answer:

22.5

Step-by-step explanation:

A Computer Selects A Number XX From 4 To 11 Randomly And Uniformly. Round All Answers To 4 Decimal Places
A Computer Selects A Number XX From 4 To 11 Randomly And Uniformly. Round All Answers To 4 Decimal Places
A Computer Selects A Number XX From 4 To 11 Randomly And Uniformly. Round All Answers To 4 Decimal Places
A Computer Selects A Number XX From 4 To 11 Randomly And Uniformly. Round All Answers To 4 Decimal Places
A Computer Selects A Number XX From 4 To 11 Randomly And Uniformly. Round All Answers To 4 Decimal Places
Answer 2

The required Distribution, selection and probability is X to U(4,11), x to N (7.5, 0.3415) and 0.87932 respectively.  

(a) Distribution of X is uniform distribution  X to U(4,11).


(b) Sample size (n) = 35, distribution of mean would be moderate with value = (4+11)/2 = 7.5

Standard deviation = √ [(11-4)^2/(12*35] = 0.3415
Now
x to N (7.5, 0.3415)

(c) We have to find probability that the average of 35 numbers will be less than 7.9.

P(x < 7.9) = P(x < 7.9; 7.5; 0.3415)
Z = (7.9 -7.5)/0.3415
Z = 1.1713
P(x< 7.9)= P(Z < 1.1713)= 0.87932.

Thus, The required Distribution, selection and probability is X to U(4,11), x to N (7.5, 0.3415) and 0.87932 respectively.  

Learn more about probability here:

brainly.com/question/14290572

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Related Questions

What is the distance between the points (−3, −5) and (−3, −7) ?




2 units

4 units

12 units

10 units

Answers

Step-by-step explanation:

d = √(x2-x1)²+(y2-y1)²

d = √(-3-(-3))²+(-7-(-5))²

d = √ 0+(-2)²

d = √4

d = 2 units

Determine the measure of the indicated
exterior angle in the diagram.

Answers

Answer: 110 degrees

Triangle sum theory tells us that all the internal angles are equal to 180.

Meaning, we can solve 2x+3x+3x+4=180 for x

x=22

Then solve for 3x+4, which equals 70.

Last step, take 70 from 180 to find the external angle!

110 :)

Answer:

Exterior angle is equal to 110

Step-by-step explanation:

So to find the exterior angle, you must find the interior angle first.

You know that all 3 angles within the triangle must equal to 180 degrees, so what we can do is set up this equation to reflect that statement:

2x+3x+(3x+4) = 180

Group like terms:

8x+4=180

Solve for x:

8x = 176

x = 22

We can double check to see this matches up with all of the other angles inside:

2x = 44

3x = 66

3x+4 = 70

44 + 66 + 70 = 180

We also know that a straight line is 180 degrees

So, ? = 180 - 70

? = 110 degrees

17
3. Kenny can type 75 words in 3 minutes. What is the constant of
proportionality that relates the number of words, y, to the number of
minutes, x?

Answers

Answer:

25

Step-by-step explanation:

Let this relationship be:

y = kx, where y is the number of words in x minutes.

Use the given numbers to find the value of k:

75 = 3kk = 75/3k = 25

onah bicycled 12 miles in 4 hours. What is the unit rate

Answers

Answer:

Miles per hour

Step-by-step explanation:

And if you want to know the speed it's 3 miles per hour.

Find the value of 4b for b = 1/2.

Answers

Answer:

Your answer for when b = 1/2 is 2.

Step-by-step explanation:

4*1/2

Hope this helps!

Answer:

2

Step-by-step explanation:

4b ; b=1/2

4(1/2)

2

Need answers with explanation

Answers

Step-by-step explanation:

i guess it helps..if yuh need step by step explanation.comment i try to explain in worda

What type of connection can you make between markups and tips or taxes? What type of connection can you make between markdowns and discounts? Explain your answer.
100 pts

Answers

Answer:

Tips or taxes add money to a bill. This is the same as a markup. Markdowns are the same as discounts. They take a percentage off a bill.

a substance is kept at -3. 1*F it's temperature is raised by 2.5 what is the new temperature

Answers

Answer:

.6 degrees

Step-by-step explanation:

-3.1+2.5=.6

Lucy is saving money to buy a game. So far she has saved $12 , which is two-thirds of the total cost of the game. How much does the game cost?

Answers

Answer:

18$

Step-by-step explanation:

Subtract 131% from 100%.

Answers

Answer:

-31%

Step-by-step explanation:

100 - 131 = -31

What is the number for pi?​

Answers

Answer:

the answer is 3.1415926535

Step-by-step explanation: I hope some of this helps I didn't know how many numbers you needed

Answer:

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 or just 3.14 (talk about memory )

Step-by-step explanation:

2/3x - 5 = 3/4
Rewrite the equation above so that it does not have fractions. Do not use decimals in your answer.

Answers

Answer:

I don't know what i do not know

i need answer for this problem​

Answers

Answer:

2. (x + 3, y - 7)

Step-by-step explanation:

What would be the nearest thousand in this Equation 7277

Answers

7000 Hope this helps.

Can someone help me do this

Answers

Answer:

5x +2 = 87

So X = 17

3y = 42

So Y = 14

Help please this is for geometry. its easy.

Answers

Answer:

Step-by-step explanation:

ccadcdddddddddddddddddddddddd

Pls help I suck at math I did understand but completely forgot after like 2 hours help

Answers

Answer:

Step-by-step explanation:

(1/5 + 1/2)² + 3/10 × 5

= (7/10)² + 3/10 × 5

= 7/10 × 7/10 + 3/10 × 5/1

= 49/100 + 15/10

= 49/20 + 3/10

= 49 + 6 = 55/20

= 2 15/20 = 2¾

Using the function y=x+7 find the output for the input x= 3

Answers

Answer:

10

Step-by-step explanation:

y=(x=3)+7

y=3+7 add

y=10

2. Given f(x) = -2x2 - 5, find f(-4).

Answers

Given the function, f(x) = -2x^2 - 5: to evaluate f(-4), you must substitute the value of x = -4 as input into the function.

f(x) = -2x^2 - 5

f(-4) = -2(-4)^2 - 5

f(-4) = -2(16) - 5

f(-4) = -32 - 5

f(-4) = -37

Therefore, f(-4) = -37

Please mark my answers as the Brainliest if you find my explanations/solution helpful :)

a janpanese chin is a small dog that weight 7 pound how many ounces is 7 pounds

Answers

Answer:

112 ounces

Step-by-step explanation:

1 pound = 16 ounces

We are converting 7 pounds to ounces

7 × 16 = 112

Find the coordinates of the vertices of the figure after the given transformation.
translation: (x, y) (x - 4, y + 4)
)
A)
J'(1,0), N'(5,0), M (5,3), P (2,5)
B)
J'(-2,5), N'(2,5), M (2, 2), P'(-1,0)
J'(-3, 4), N (1, 4), M'(1, 1), P'(-2,-1)
D)
J'(-1,0), N'(-5,0), M'(-5, -3), P"(-2,-5)

Answers

Answer:

b

Step-by-step explanation:

because b look like a great answer

help me find what 8/9​

Answers

Answer: B= 8÷9

I found this answer because if you divide 8 and 9 the 8 stays the same and the 9 turns into 1/9 and if you multiply 8 × 1/9 you will get 8/9.

I hope this helps! :)

Hey there!

To find the answer to a fraction to convert it to a decimal you have to DIVIDE to NUMERATOR (the TOP number) from the DENOMINATOR (the BOTTOM number) and it should give you your result to this given question

Option A doesn’t have anything to do with 8/9 because the question isn’t asking what is equivalent to eight divided one-ninths.

Option B. could possibly be your answer because it is asking what is equivalent to 8/9

Option C. also doesn’t have anything to do with 8/9 because the question isn’t asking what it is equivalent to nine divided one-eighths. 9 1/8 =

Option D. as well doesn’t have to do with 8/9 because the equation isn’t 9/8 so you can’t divided 9 from 8

Based on the information we have now. We can answer the question.

Possible answer: Option B. 8 ÷ 9

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Help!! I really don't get it and if you can please give explanation

Answers

Answer: 1/20

Step-by-step explanation: = 1+8:36= 9 hours and 36 minutes

= 9+ 36/60= 9 3/5 hours

=48/5

Decrease per hour= 12/25 divided by 48/5

= 12/25 times 5/48= 1/20

Ans 1/20

solve this equation x/4-20=-12

Answers

Answer:

X=32

Step-by-step explanation:

First Find common denominator

Combine fractions with common denominator

Multiply the numbers

Multiply all terms by the same value to eliminate

And I think you got it from there :))))))))))))))

Answer:

x = 32

Step-by-step explanation:

Find a common denominator

x/4 + 4 ( -20 )/4 = -12

Combine fractions with denominator

Multiply the numbers

Multiply all terms by the same value to eliminate fraction denominators

Cancel multiplied terms that are in the denominator

Multiply the numbers

Add 80 to both sides of the equation

Then simplify!

ill give brainliest just gimme the one i selected pls the first one

Answers

Answer:

50

Step-by-step explanation:

Answer:

okokokokok

Step-by-step explanation:

Find the mean rounded to the nearest tenth median mode and range 45,43,40,41,39,40,47,40

Answers

Answer:

mean- 41.9

median- 45.5

mode- 40

range- 43

Step-by-step explanation:

Each side of a square patio is 10.5 feet. The patio is made up of 1.5 foot by 1.5-foot square stones. What is the number of stones in the patio? Look at the solution below.
Does it include all the steps needed to solve the problem? Explain

10.5 x 10.5 = 110.25 PLZ SOLVE THE PROBLEM
110.25 ÷ 1.5 = 73.5

Answers

The steps your teacher gave you are on the right track, but not quite 100% correct.

The first line has us find the area of the entire patio. That area being 110.25 square feet.

The next step is to find the area of each stone. That would be 1.5 x 1.5 = 2.25 square feet.

Therefore, the patio is made up of 110.25 ÷ 2.25 = 49 tiles

When arranged into a square, we'll have a 7 by 7 square set of stone tiles. Notice how 7 x 7 = 49.

80°
50°
Зc +2°
C=.

Can i get a step by step or a video on this?

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

In the given figure, let the third angle of the triangle be x

From Angle sum property of a triangle, we know that :

x + 80° + 50° = 180°

x + 130° = 180°

x = 180° - 130°

x = 50°

so, the third angle will be 50°

and as we can observe here, the third angle of the triangle is equal to (3c + 2)° by vertical opposite angle pair.

so,

3c + 2° = 50°

3c = 50° - 2°

3c = 48°

c = 48° ÷ 3

c = 16°

hence, value of c = 16°

what divided by 25 = 4.8?

Answers

Answer:

120/25 = 4.8

Step-by-step explanation:

To set up the equation you would do this-

[tex]\frac{4.8}{1} =\frac{x}{25} \\[/tex]

Then cross multiply (multiply 4.8 by 25 and x by 1)

[tex]4.8(25) = x(1)\\120 = x[/tex]

Solve each compound inequality -10-2v<6and6v+12<-6

Answers

Answer:

v>-8 ; v<−3

Step-by-step explanation:

−10−2v<6

Step 1: Simplify both sides of the inequality.

−2v−10<6

Step 2: Add 10 to both sides.

−2v−10+10<6+10

−2v<16

Step 3: Divide both sides by -2.

−2v/−2 < 16/−2

v>−8

6v+12<−6

Step 1: Subtract 12 from both sides.

6v+12−12<−6−12

6v<−18

Step 2: Divide both sides by 6.

6v

6

<

−18

6

v<−3

The first picture I sent ( the one which is from -8 to 14) is for −10−2v<6 and the second one (that has -3 to -9) is for 6v+12<−6

I hope this helped :)

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