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qaws [65]
3 years ago
10

The histogram shows the scores of each participant in a game for a total of 100 participants. What is the ratio of participants

who score 80 to 99 to the total number of participants? 17 participants scored 80-99
Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
8 0
10/002728182.2777272829 error
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In a random sample of fivefive microwave​ ovens, the mean repair cost was ​$75.0075.00 and the standard deviation was ​$13.0013.
Radda [10]
<h2>Answer with explanation:</h2>

As per given , we have

Sample size : n= 5

Degree pf freedom = : df= 5-1=4

\mu=\$75.00

\sigma=\$13.00

Significance level for 90% confidence = \alpha=1-0.90=0.1

Using t-value table , t-critical value for 90% confidence:

t_{\alpha/2, df}=t_{0.05, 4}=2.132.

Margin of error of \mu: E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\(2.132)\dfrac{13}{\sqrt{5}}=12.3949720129\approx12.39

Interpretation : The repair cost will be within $12.39 of the real population mean value \mu 90% of the time.

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Reika [66]

Put this into slope intercept form.

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MrRissso [65]
Solving for x you would get X=6
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Answer:  <em>Line of reflection is y = 2 x + 2</em>

Step-by-step explanation: <em> I Hope this helps</em>

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What is .0196 rounded to the thousandths
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so, the thousandth place is (EXAMPLE THIS IS: 0.00<u>1</u>) in this case, the 9 is in the thousandths place, and because the number to the right is greater than five, the answer is: 0.020, because you would round <u>UP</u>.

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