Question

The mean score was 72. The standard deviation was 7 percentage-points. Based on this information, what is the best

approximation for the number of students who scored 79 or better?

Answer 1

Explanation:

the answer is 159. i just took the test and got it right

Answer 2

the number of student that took the test is missing

I think it is 100?

79 is 1 sigms (1 standard deviation) above the mean....

1 sd is 84% ... 16% are above the 79

multiply the students that took the test by .16

Explanation: