Question 875267
M = 70, SD = σ = 10 , z = (x - M)/σ 
1. P(x < 65)= P(z < -.5) = .3085
2. P(x > 88) = P(z > 1.8) = .0359
3. P(65 < x < 88) = P(z <1.8) - P(z < -.5) = .9641 - .3085