Z is a standard normal random variable, then k is ...
a. P(Z < k) = 0.92
b. P(Z > k) = 0.72
c. P(Z ≤ k) = 0.26
d. (A-Grade) P(−1 < Z < k) = 0.60
e. (A-Grade) P(k < Z < 1.7) = 0.57
f. (A-Grade) P(Z = k) = 0.00
find the probabilities for each using the standard normal
distribution. p(0<z<0.95), p(0<z<1.96),
p(-1.38<z<0), p(z>2.33), p(z<-1.51),
p(1.56<z<2.13), p(z<1.42)