Another way to express probabilities associated with Z scores (assuming a standard normal distribution) is to use parentheses according to the format:

P(Z > 0) = 0.5000, for the case when Z = 0. Calculate the following probabilities:

a. P(Z < –2.90) =

b. P(Z > –1.11) =

c. P(Z < 0.66) =

d. P(Z > 3.00) =

e. P(Z < –1.50) =