# Question: If Z is a random variable having the standard nor mal

If Z is a random variable having the standard nor–mal distribution, find the respective values z1, z2, z3, and z4 such that

(a) P(0 < Z < z1) = 0.4306;

(b) P(Z ≥ z2) = 0.7704;

(c) P(Z > z3) = 0.2912;

(d) P(–z4 ≤ Z < z4) = 0.9700.

(a) P(0 < Z < z1) = 0.4306;

(b) P(Z ≥ z2) = 0.7704;

(c) P(Z > z3) = 0.2912;

(d) P(–z4 ≤ Z < z4) = 0.9700.

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