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CNNBC recently reported that the mean annual cost of auto insurance is 953 dollars. Assume the...

CNNBC recently reported that the mean annual cost of auto insurance is 953 dollars. Assume the standard deviation is 290 dollars. You take a simple random sample of 66 auto insurance policies.

Find the probability that a single randomly selected value is less than 960 dollars.
P(X < 960) =

Find the probability that a sample of size n=66n=66 is randomly selected with a mean less than 960 dollars.
P(M < 960) =

Enter your answers as numbers accurate to 4 decimal places.

Math   Statistics-And-Probability   
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