Question

find the area under the standard normal curve to the right z= 1

find the area under the standard normal curve to the left z= 1.25

find the value z(alfa) z0.04

Answer 1

1) The area to right of Z = 1.0

P( Z 1.0) using standard normal table

P( Z 1.0) = 1- P( Z < 1.0)

P( Z 1.0) = 1 - 0.8413

P( Z 1.0) = 0.1587

2) P( Z 1.25) using standard normal table

P( Z 1.25) = 0.8944

3) Z​​​​​​0.04 = -1.75