even if it is corre Normal distribution and Standard normal Question 1. Given a normal distribution with u = 87 and o = 3.8, find (8 points) (a) the normal curve area (probability) for x =78.4 (c) the normal curve area (probability) between x = 85.2 and x = 88 to move in (d) the normal curve area (probability) between x = 76.6 and x = 90.4