Question

This frequency table represents the number of cars owned by each family on a street. What is the mean number of cars owned by each family?

A. 2.5
B. 3
C. 4
D. 5.5

Answer 1

B

Explanation:

={(1x4)+(2x3)+(3x4)+(4x7)+(5x2)}÷20

={4+6+12+28+10}÷20

={10+40+10}÷20

={60}÷20

=3