A normal population has a mean of 75 and a standard deviation of 5. You select a sample of

Compute the probability the sample mean is: (Round z values to 2 decimal places and final answers to 4 decimal places):

a. Less than 74.

Probability =

b. Between 74 and 76.

Probability =

c. Between 76 and 77.

Probability =

d. Greater than 77.

Probability =