given a standard normal disturbution

Question

Given a standard normal distribution, find the probablitiy of:

a. less than -0.59

b. between -0.73 and 1.45

Answer 1

P(z < -0.59) = 0.2776

P(-0.73 < z < 1.45) = P(z < 1.45) - P(z < -0.73) = 0.9265 - 0.2327 = 0.6938