Question 2. In 2015, a Pew Research poll determined that 56% of teenagers go online several times a day.

You question a sample of 150 area high school students about their online habits. Describe the sampling distribution for the sample proportion, for samples of size 150, of high school students who go online several times a day. You should include a picture that approximates the sampling distribution, and label at least five tick marks in that drawing. Round to the nearest tenth of a percent.







b. You find that, in your sample, 94 of the high school students go online several times a day. Assuming the percentage obtain from Pew, is your result unusual, as defined in class? Justify your answer with a z-score.

Answer:

[tex]2) \: \: \frac{11}{2} [/tex]

Step-by-step explanation:

[tex] \frac{4}{5} + \frac{18}{20} \\ \\ \frac{4}{5 \times 4} + \frac{18}{20} \\ \\ \frac{4}{20} + \frac{18}{20} \\ \\ \frac{4 + 18}{20} \\ \\ \frac{22}{20} \\ \\ \frac{11}{2} [/tex]

Answer:

0

Step-by-step explanation:

first we work out product of set b

6(m-4) = 6m -24

then reshow

-28+6m = 6m-24-4

-28 +6m -6m = 24-4

-28 =28

= 0

Answer:

Jacob lost the biggest percentage of his starting weight.

Jacob: 8%

Timothy: 6.4%

Hamza: 7.5%

Formula: (initial weight - new weight)/initial weight times 100.

Step-by-step explanation:

Jacob: 225 pounds - 207 pounds = 12 pounds

x/100 = 12/225

= 1800/225

= 8%

Timothy: 200 pounds - 188 pounds = 12 pounds

x/100 = 12/188

= 1200/188

= 6.4%

Hamza: 280 pounds - 259 pounds = 21 pounds

x/100 = 21/280

= 2100/280

= 7.5%

Answer:

Step-by-step explanation:

s x 4

d x 3.14

Answer:

∠ 5 = 122° , ∠ 6 = 58°

Step-by-step explanation:

∠ 5 and 122° are vertically opposite and are congruent , then

∠ 5 = 122°

∠ 5 and ∠ 6 are same- side interior angles and sum to 180°

∠ 5 + ∠ 6 = 180° , that is

122° + ∠ 6 = 180° ( subtract 122° from both sides )

∠ 6 = 58°

Answer:

167244719280

167 billion 244 million 719 thousand, 280

Answer:

X = 8⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Answer:

Step-by-step explanation:

[tex]13x-\dfrac{1}{2}(4x + 50) = 8x - 1\\\\13x -\dfrac{1}{2}*4x - \dfrac{1}{2}*50 = 8x - 1[/tex]

13x  - 2x  - 25 = 8x - 1

11x - 25 = 8x - 1

11x = 8x - 1 + 25

11x = 8x + 24

11x- 8x = 24

3x = 24

x = 24/3

x = 8

Answer:

It is linear. The constant rate of change is 3 cents per hour.

Step-by-step explanation:

15/5 = 3

24/8 = 3

36/12 = 3

72/24 = 3

Answer:

0.25

Step-by-step explanation:

the pattern is dividing by -4. so divide -1 by -4 and you get 0.25.

Answer:

5

Step-by-step explanation:

-4x-4+3x+x-9 distributive property

combine like terms which would delete x, so the answer would be 5

Answer:

A

Step-by-step explanation:

Answer: the answer is 21/32 and it is equivalent to 0.65625.

Step-by-step explanation:

Answer:

-360

Step-by-step explanation:

hope this helps!

Answer:

-360

Step-by-step explanation:

[-1 3/5 × (-6)] × (-3 3/4) × 10

= [-8/5×-6] × -15/4×10

= 48/5×-15/4×10

= -360

Answer:

y = 1/2x

Step-by-step explanation:

Slope: 1/2

y = 1/2x

Answer:

C

Step-by-step explanation:

Answer:

Is the answer -12 or something else?

Answer:

c) -12

Step-by-step explanation:

8 * 2 = 16

16 - 4 = 12

Answer:

it would be B, it goes x axis to y axis

Explanation:

Start where the x and y axis meet. This is the origin.

Move to the left 3 units. You'll be directly under point H.

Then move 3 units up to arrive at point H.

Moving to the left 3 means x = -3. Moving up 3 means y = 3.

Together we have the location (x,y) = (-3,3)

You can think of the x,y location as if it was an address on a map or longitude/latitude coordinates.

Answer:

9

Step-by-step explanation:

[(2+5)-14]x3

7-4x3

3x3

=9

Answer:

Datas are not given...............

Answer:

there is no data? pls give data

9514 1404 393

Answer:

  $16,974.50

Step-by-step explanation:

$14,382.50+24% of the amount over $84,200 is ...

  $14,382.50 +0.24×(95,000 -84,200) = $14,382.50 +2592.00 = $16,974.50

Mustafa owes $16974.50 in federal income tax.

_____

Additional comment

Each row of the tax table can be simplified by multiplying out the expression it describes. For the row applicable to this problem, that becomes ...

  14382.50 +0.24(amount -84200) = 14382.50 +0.24×amount -20208

  = 024×amount -5825.50

Answer:

8.9770

Step-by-step explanation:

The statement that correctly compares the function shown on the graph with the function y=4x + 2 is 'The function shown on the graph has a smaller rate of change, but a higher starting point.'

The rate at which one quantity is changing with respect to another quantity.

For given question;

It is given a function y = 4x + 2

This function represents a line.

We have slope of the line = 4 and y - intercept = 2

We already know that the rate of change of line is given by its slope.

So, the rate of change of given function ;

y = 4x + 2 is 4.

The starting point of function f(x) is 2.

The graph of the line passing through points (-1, 1) and (0, 4)

So using slope formula,

m = (4-1)/ 0-(-1)

m = 3

So, the rate of change of function is 3.

The rate of change of function shown on the graph is smaller than the rate of change of function y = 4x + 2

Thus, the statement that correctly compares the function shown on the graph with the function y=4x + 2 is 'The function shown on the graph has a smaller rate of change, but a higher starting point.'

Hence, The correct answer is option (A)

Learn more about the rate of change of function here:

brainly.com/question/21335643

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[tex]\boxed{\sf \dfrac{d}{dx}x^n=nx^{n-1}}[/tex]

[tex]\boxed{\sf \dfrac{d}{dx}sinx=cosx}[/tex]

Now

[tex]\\ \sf\longmapsto \dfrac{d}{dx}(x+1)sinx[/tex]

[tex]\\ \sf\longmapsto 1+cosx[/tex]

sin x + x · cos x + cos x

Step-by-step explanation:

f(x) = u · v → f'(x) = u' · v + u · v'

f(x) = (x + 1) sin x

f'(x) = 1 · sin x + (x + 1) · cos x

f'(x) = sin x + x · cos x + cos x

Answer:

3, 5, 9, 15

Step-by-step explanation:

Just find all the factors

Answer:

1

Step-by-step explanation:

-5 +6=1 jsjenejsnsjwjjwwj

(-5) + 6 = "1'

Let me know if its wrong.

Answer:

1:92

Step-by-step explanation:

that's how you write scale

pls mark brainliest

Answer:

18 units

Step-by-step explanation:

You don't need to use slope since both are using 13 for y.

22 - 4 (both x values) = 18

B. 18 units