Question

Question #54e89

Answer 1

The answer is `=0.9447`

Explanation:

The probability for `P(z<=2.3)` is

`P(z<=2.3)=0.9893`

The probability for `P(z<=1.7)` is

`P(z<=1.7)=0.9554`

Therefore,

`P(z<=-1.7)=1-0.9554=0.0446`

Finally

`P(-1.7 < z < 2.3)= P(z<=2.3)-P(z<=-1.7)=0.9893-0.0446=0.9447`