Answer:
102 students
Step-by-step explanation:
Note that 65% and 71% are both 1 standard deviation from the mean (71%). According to the empirical rule, 68% of scores lie within 1 std. dev. of the mean.
68% of 150 students would be 0.68(150 students) = 102 students
1/6, 2/3, 3/4 is the answer
The answer is 9.42 for the ones wondernig what it was! I calculated it and took the exam and it was correct.