28. Let Z be a standard normal random variable and calculate the following probabilities, drawing pictures wherever appropriate.

a. P(0  Z  2.17)

b. P(0  Z  1)

c. P(2.50  Z  0)

d. P(2.50  Z  2.50)

e. P(Z  1.37)

f. P(1.75  Z)

g. P(1.50  Z  2.00)

h. P(1.37  Z  2.50)

i. P(1.50  Z)

j. P(⏐Z⏐  2.50)