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) \(\) \(P(z > -0.51 ) =\)