Let Z be a random variable from a standard normal distribution. a) Find P(Z>0.28). b) Find z₀ such that P(Za. 0.3897 and z₀ = 0.2
b. 0.3897 and z₀ = 0.4
c. 0.3897 and z₀ = 0.3
d. 0.3897 and z₀ = 0.5