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vovikov84 [41]
3 years ago
15

What is the ratio 8 to 72 expressed as a fraction in simplest form?

Mathematics
2 answers:
Sauron [17]3 years ago
7 0
The ratio of 8/72 is 1/9 because you can reduce 8 and 72 by 8.

8/ 8= 1
to      to
72/ 8=9
tia_tia [17]3 years ago
5 0
8/72
1/9.................
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Thr answer is c) 60 minutes .
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The diameter of holes for a cable harness is known to have a normal distribution with σ = 0.01 inches. A random sample of size 1
Rama09 [41]

Answer: (1.4964, 1.5126)

Step-by-step explanation:

We know that the confidence interval for population mean is given by :-

\overline{x}\ \pm z*\dfrac{\sigma}{\sqrt{n}}

, where {\sigma= population standard deviation.

n= sample size

\overline{x} = Sample mean

As per given , we have

σ = 0.01 inches

n= 10

\overline{x}=1.5045

Also, the critical value for 99% confidence interval = z*=2.576 [From x-value table.]

[Significance level =1-0.99=0.01 and z_{\alpha/2}\ at\ \alpha=0.01 is 2.576.]

Then, the 99% two-sided confidence interval on the mean hole diameter will be :-

1.5045\ \pm (2.576)\dfrac{0.01}{\sqrt{10}}\\\\\approx1.5045\pm(2.576)(0.00316)=1.5045\pm0.00814016=(1.5045-0.00814016,\ 1.5045+0.00814016)\\\\=(1.49635984,\ 1.51264016)\approx(1.4964,\ 1.5126)

Hence, the required confidence interval = (1.4964, 1.5126)

8 0
3 years ago
The matrices shows the number of dance students enrolled in each type of class for two different years.
Scorpion4ik [409]

Answer:

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Step-by-step explanation:

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3 years ago
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zubka84 [21]
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In short, Your Answer would be Option A

Hope this helps!
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