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A random variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the

A random variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the distribution,

a. What value will be exceeded 10% of the time?

b. What value will be exceeded 85% of the time?

c. Determine the two values of which the smallest has 25% of the values below it and the largest has 25% of the values above it.

d. What value will be 15% of the observations below?

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