Question 910746
mean = 3.2, sd = .8
a) P(x ≥ 2) = 1 - normalcdf(2, 100, 3.2,.8)....  100 a placehoder 
b) )(x ≤ 4) = normalcdf(-100, 4, 3.2,.8)
c) .8invNorm(.95) + 3.5 =X, number of cups consumed by a heavy coffee drinker
d) s = .8/sqrt(20)
P(x>3) = 1 - normalcdf(-100,3,3.2,s)