(4 pts) The score on an exam from a certain MAT 112 class, X, is normally distributed with \mu = 77.6 and \sigma = 10.9.
NOTE: Assume for the sake of this problem that the score is a continuous variable. A score can thus take on any value on the continuum. (In real life, scores are often treated as if they were continuous values but are actually discrete in most cases.)
(a) Write the event ''a score less than 69.6'' in terms of X: .
(b) Find the probability of this event:
(c) Find the probability that a randomly chosen score is greater than 86.1: .
(d) Find the probability that a randomly chosen score is between 69.6 and 86.1:
1 answer
Use same process as in previous post.