Question

Carl earned grades of 62 78 59 and 89 what is the mean of his grades

Answer 1

72

Explanation:

Let

Carl grades = x = 62, 78, 59, 89

Number of grades, N = 4

Mean of Carl's grade = sum of x / number of grades,N

= (62 + 78 + 59 + 89) / 4

= 288/4

= 72

Therefore, mean of Carl's grade = 72