If Z Is a Standard Normal Random Variable, Find the Following

Essay

If Z is a standard normal random variable, find the following probabilities.
a. P(Z $\leq$ 2.33).
b. P(Z $\geq$ 1.65).
c. P(-0.58 $\leq$ Z $\leq$ 1.58).
d. P(Z $\leq$ -2.27).