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Maurinko [17]
3 years ago
9

Assume the random variable x is normally distributed with mean u = 82 and standard deviation o =5. Find the indicated probabilit

y
Mathematics
1 answer:
jasenka [17]3 years ago
7 0

P(
x86)
P(x < 86) =
(Round to four decimal places as needed
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The diameter of a circle is 24 feet. What
kupik [55]
<h3>Answer: Circumference is approximately 75.36 feet</h3>

=======================================================

Work Shown:

d = diameter = 24 ft

pi = 3.14 approx

C = circumference of circle

C = pi*d

C = 3.14*24

C = 75.36 feet

3 0
3 years ago
A random sample of 70 printers discovered that 25 of them were being used in small businesses. find the 95% limit for the popula
kvasek [131]

Answer:

The sample proportion of printers used in small business is:

\hat{p}=\frac{25}{70}=0.3571

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

\hat{p} \pm z_{\frac{0.05}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n} }

Where:

z_{\frac{0.05}{2}}=1.96 is the critical value at 0.05 significance level

\therefore 0.3571 \pm 1.96 \sqrt{\frac{0.3571(1-0.3571)}{70} }

         0.3571 \pm 0.1122

         \left ( 0.3571 - 0.1122, 0.3571 + 0.1122 \right)

         \left(0.245,0.469 \right)

Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)



7 0
3 years ago
Triangle ABC has side lengths 10, 14, and 26. Do the side lengths form a Pythagorean triple? Explain.
uysha [10]
By <span>Pythagorean triple
a²+b²=c²,
c should be longest side
10²+14²=26²
100+196=676
296</span>≠676
so sides do not form  Pythagorean triple, it is not a right triangle

5 0
3 years ago
Name the property illustrated by the following. (a) x + (-x) = 0; (b) x + (-y) = -y + x
Mama L [17]

Answer:

8

Step-by-step explanation:

8 0
3 years ago
Write a formula for r in terms of 0 based on the image below
kozerog [31]

Answer:

the answer to your question is r squeal 0

8 0
3 years ago
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