ryanhalloran45 ryanhalloran45

11-11-2022
Mathematics

Answered

CNNBC recently reported that the mean annual cost of auto insurance is 960 dollars. Assume the standard deviation is 236 dollars. You take a simple random sample of 85 auto insurance policies.

Find the probability that a single randomly selected value is at least 961 dollars.
P(X > 961) =

Find the probability that a sample of size n=85 is randomly selected with a mean that is at least 961 dollars.
P(M > 961) =

Answer :

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