Normal Distribution Probabilities
For the next two questions assume that X = SAT test scores have a normal distribution
with a mean of μX = 1518 and a standard deviation of σX = 325.
a) What is the probability that one person’s score is greater than 1,600.
What is the Prob( Xi > 1,600 )?
b) What is the probability that the average/mean score from a group of n=64 test
takers is greater than 1,600. What is the Prob( x̄ > 1,600)
