In last year's math class, the class average was 78 and the class size was 176 students. The standard deviation was 7. What was the grade distribution?

Question

What will be an ideal response?

Answer 1

1å = 71 - 85 120 students
(60 from 71 - 78)
(60 from 78 - 85)

2å = 64 - 92 167 students

(23 from 64 - 71)

(23 from 85 - 92)

3å = 57 - 99 175 students

(4 from 57 - 64)

(4 from 92 - 99)

Students outside the normal distribution = 1