Question 1158486
z=(x-mean)/sd
so X>102 is z=(102-100)/10 with a z value > 0.2 or probability of 0.4207
x<85 is z value <-1.5 or probability of 0.0668

x< 130 is z<3 or probability 0.9987

d is z value between -.5 and +.5 or probability of 0.3829