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dmitriy555 [2]
3 years ago
9

PLEASE ANSWER THIS AS SOON AS POSSIBLE

Mathematics
1 answer:
frutty [35]3 years ago
3 0
What you have to do is multiply 0.42 by 8.3 million, then add that number to 8.3 million and you will have the total number of college students.
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6. A car dealership would like to estimate the mean mpg of its new model car with 90% confidence. The population is normally dis
Yakvenalex [24]

Answer:

92.9997<\mu<99.5203

Step-by-step explanation:

Using the formula for calculating the confidence interval expressed as:

CI = xbar ± Z * S/√n where;

xbar is the sample mean

Z is the z-score at 90% confidence interval

S is the sample standard deviation

n is the sample size

Given parameters

xbar = 96.52

Z at 90% CI = 1.645

S = 10.70.

n = 25

Required

90% confidence interval for the population mean using the sample data.

Substituting the given parameters into the formula, we will have;

CI = 96.52 ± (1.645 * 10.70/√25)

CI = 96.52 ± (1.645 * 10.70/5)

CI = 96.52 ± (1.645 * 2.14)

CI = 96.52 ± (3.5203)

CI = (96.52-3.5203, 96.52+3.5203)

CI = (92.9997, 99.5203)

<em>Hence a 90% confidence interval for the population mean using this sample data is 92.9997<</em>\mu<em><99.5203</em>

4 0
3 years ago
You lose two points every time you forget to write your name on a test. You have forgotten to write your name for transfer what
Vinvika [58]
the answer is -2........
8 0
3 years ago
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Solve A = 1/2bh, for b
Kitty [74]

Answer:

b=2A/h

Step-by-step explanation:

First I throw everything else to another side with A by dividing them

(A = b)/2h

then I get

b=2A/h

7 0
2 years ago
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Is (x+5)2 equivalent to 2x2+10x +10? Explain why or<br> why not?
Rzqust [24]

Answer:

no

Step-by-step explanation:

no because its equal to 2x+10

4 0
3 years ago
Question is below. 20 characters
erastova [34]

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Step-by-step explanation:

g(x) = x+4

g(8) = 8+4 = 12

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3 years ago
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