Find P ( -1.2 < Z < -0.2 )

Question

Find P ( -1.2 < Z < -0.2 )

Answer 1

Using a Z score table or a calculator:

P(Z= -1.2) = .1151

P(Z = -0.2) = .4207

The probability of being between those is

P(X= -0.2) - P(X= -1.2)

= 0.4207 - 0.1151

= 0.3056