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Anettt [7]
3 years ago
9

Need help! please! I'll give brianliest to right answer

Mathematics
1 answer:
Fed [463]3 years ago
6 0

Answer:

D

Step-by-step explanation:

The y values are negative, which takes away the first two options.  Next, if the x was - 1, it would be at y coordinate -3, so that means that it has to be D.

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Fewer young people are driving. In 1995, 63.9% of people under years old who were eligible had a driver's license. Bloomberg rep
nika2105 [10]

Answer:

A. 0.0272

B. 0.0278

C. No

Step-by-step explanation:

a. Calculation for the margin of error and the interval estimate of the number of eligible people who had a driver’s license in 1995u

First step is to calculate the Standard error using this formula

Standard error(SE)= √(pcap * (1 - pcap)/n)

Where,

pcap represent sample proportion = 0.639

n represent sample size = 1200

Let plug in the formula

Standard error (SE)= √(0.639 * (1 - 0.639)/1200)

Standard error(SE)= 0.0139

Second step is to find Zc using this formula

Zc = Z(α/2)

Where,

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

Zc = Z(α/2) = 1.96

Now let calculate the Margin of Error using this formula

Margin of Error= zc * SE

Let plug in the formula

Margin of Error = 1.96 * 0.0139

Margin of Error = 0.0272

Therefore the Margin of Error is 0.0272

b. Calculation for the margin of error and the interval estimate of the number of eligible people who had a driver’s license in 2016

First step is to calculate the Standard error using this formula

Standard error(SE)= √(pcap * (1 - pcap)/n)

Where,

pcap represent sample proportion = 0.417

n represent sample size = 1200

Let plug in the formula

Standard error (SE)= √(0.417 * (1 - 0.417)/1200)

Standard error(SE)= 0.0142

Second step is to find Zc using this formula

Zc = Z(α/2)

Where,

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

Zc = Z(α/2) = 1.96

Now let calculate the Margin of Error using this formula

Margin of Error= zc * SE

Let plug in the formula

Margin of Error = 1.96 * 0.0142

Margin of Error = 0.0278

Therefore the Margin of Error is 0.0278

c. Based on the above calculation for both (a) and (b) the MARGIN OF ERROR are NOT the same reason been that (a) Margin of Error is 0.0272 while (b) Margin of Error is 0.0278 which simply shows that the proportion in parts (a) and are different.

5 0
3 years ago
A cereal box is an example of a
JulsSmile [24]

Answer: recantagle

Step-by-step explanation:

3 0
3 years ago
Diana uses 30 grams of coffee beans to make 48 fluid ounces of coffee. When company comes she makes 100 fluid ounces of coffee.
wolverine [178]
She uses 62.5 when company comes over because when there is no company to answer the question 48 time 2 is 96 then configure that is 60, if you understand where I am coming from. 
THE ANSWER IS 62.5
8 0
2 years ago
That or they on average Shantae drinks a 1/2 of a 6 oz glass of water and 2/3 of an hour how much water does she drink an hour​
nikklg [1K]

Answer:

7oz of water

Step-by-step explanation:

6(1/2)= 3; 6(2/3)= 4; 3+4=7

5 0
3 years ago
I DONT UNDERSTAND HELP <br> Find the values of the variables<br><br> (Simplify your answers )
SVETLANKA909090 [29]

Answer:

x=88 (alternative angles)

y=31 each

v=41 (alternative angles)

w=20 (alternative angles)

Step-by-step explanation:

for y:

we add all the angles got therefore,

20+41+88+y+20+41+88+y=360(because total angle in a quadilateral is 360°)

298+2y=360

2y=360-298

2y=62

therefore y=62/2=31° for each y

4 0
2 years ago
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