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A random sample of n=36 observations is drawn from a population with a mean equal to...

A random sample of n=36 observations is drawn from a population with a mean equal to 60 and a standard deviation equal to 36.

a. Find the probability that x? is less than 48 ____

b. Find the probability that x? is greater than 63____

c. Find the probability that x? falls between 48 and 78 ____

Math   Statistics-And-Probability   
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c) To find

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