Multiple Choice
A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard deviation of 9.What proportion of students scored between 81 and 89?
A) .0668
B) .0132
C) .0786
D) .0529
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q71: A study shows that employees that begin
Q72: While conducting experiments,a marine biologist selects water
Q73: Suppose the daily change in price of
Q74: An apple juice producer buys all his
Q75: The average time a subscriber spends reading
Q77: During the past six months,73.2 percent of
Q78: The mean of a standard normal distribution
Q79: Values of the standard normal random variable
Q80: Given that X is a normal random
Q133: An aptitude test has a mean score