Question

Each of 8 students reported the number of movies they saw in the past year. This is what they reported: 18, 10, 20, 18, 12, 19,12, 11 find the mean and median number of movies that the students saw

Answer 1

I. Mean = 15

II. Median = 15

Explanation:

Given the following data;

Total number of students = 8

x = 18, 10, 20, 18, 12, 19,12, 11

F(x) = 18 + 10 + 20 + 18 + 12 + 19 + 12 + 11

F(x) = 120

To find the mean;

Mean = F(x)/n

Mean = 120/8

Mean = 15

To find the median;

Median refers to the middle number of a sorted data.

x = 10, 11, 12, 12, 18, 18, 19, 20

Middle numbers = 12 and 18

Median = (12 + 18)/2

Median = 30/2

Median = 15