Checkpoint 9.2.3. WebWork - Computing Standard Normal Probabilities. Activate Find the following probabilities for the standard normal random variable \(z\text{:}\) (a) \(\) \(P(-1.83 \leq z \leq 2.06 ) =\) (b) \(\) \(P(-0.91 \leq z \leq 1.49 ) =\) (c) \(\) \(P(z \leq 0.93 ) =\) (d) \(\) \(P(z > -0.51 ) =\) Answer 1.Answer 2.Answer 3.Answer 4.