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ASHA 777 [7]
2 years ago
13

10 Points + Brainliest this is half of my points please will mark brainliest

Mathematics
1 answer:
Inessa [10]2 years ago
6 0

Step-by-step explanation:

the answer is in the above image

use the app DESMOS it really helps

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What is the volume of the cone below?
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Answer:

B. 3408pi

Step-by-step explanation:

formula volume of cone = 1/3 x pi x r x r x h

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= 3408pi

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In a large population, 82% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
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Answer:

The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For proportions, the mean is \mu = p and the standard deviation is s = \sqrt{\frac{p(1-p)}{n}}

In this problem, we have that:

p = 0.82, n = 225.

So

\mu = 0.82

s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.82*0.18}{225}} = 0.0256

The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

7 0
3 years ago
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If Callum is consuming his utility maximizing bundle and the price of one good rises, what happens to the marginal utility per d
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MU/P has decreased and Callum should buy less of the good.

Step-by-step explanation:

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3 years ago
Help need ASAP <br> Trigonometry
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Step-by-step explanation:

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