Answer
First we need to calculate z:
z = $\frac{x-μ}{σ}$
= $\frac{1-0.8}{0.078}$
= 2.56
Determining corresponding probability from Table A, we get:
P(Y $\gt$ 1) = P(z $\gt$ 2.56) = 1 - P(z $\lt$ 2.56)
= 1 - 0.9948
= 0.0052
Work Step by Step
As given above
