Every year, the students at a school are given a musical aptitude test that rates them from 0 (no musical aptitude) to 5 (high musical aptitude). this year's results were: aptitude score frequency 0 1 1 2 2 2 3 2 4 3 5 4 the mean ( ¯ x ) aptitude score

The mean aptitude score is 3.14.

Step-by-step explanation:

The given frequency table is

Aptitude Score    :     0       1        2         3         4         5

Frequency           :     1         2       2        2         3          4

Formula for Mean

First find .

0             1              0

1              2             2

2             2             4  

3             2             6

4             3            12

5             4            20

Sum  =  14             44

Substitute in the above formula.

Therefore, the mean aptitude score is 3.14.