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Crank
2 years ago
7

Find the area of the circle and enter your answer below. Leave Pl in the answer (do not multiply by Pl) Area = πm2 15 m​

Mathematics
1 answer:
jolli1 [7]2 years ago
4 0

Answer:

225π

Step-by-step explanation:

Since we are given that m is equivalent to 15 we can plug it into the Area equation given to us like so:

Area = πm²

Area = π15²

Area = π225

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Answer:

The percentage of samples of 4 fish will have sample means between 3.0 and 4.0 pounds is 66.87%

Step-by-step explanation:

For a normal random variable with mean Mu = 3.2 and standard deviation sd = 0.8 there is a distribution of the sample mean (MX) for samples of size 4, given by:

Z = (MX - Mu) / sqrt (sd ^ 2 / n) = (MX - 3.2) / sqrt (0.64 / 4) = (MX - 3.2) / 0.4

For a sample mean of 3.0, Z = (3 - 3.2) / 0.4 = -0.5

For a sample mean of 3.0, Z = (4 - 3.2) / 0.4 = 2.0

P (3.2 <MX <4) = P (-0.5 < Z <2.0) = 0.6687.

The percentage of samples of 4 fish will have sample means between 3.0 and 4.0 pounds is 66.87%

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3 years ago
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Step-by-step explanation:

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