The line chart given below shows the number of hours for which the 6 students ST1, ST2, ST3, ST4, ST5 and ST6 study in a month.

For the given 6 students, what is average hours of study per student in the given month?
Show answer & explanation
Correct answer: B
Explanation
Given:
ST1 = 65, ST2 = 126, ST3 = 135, ST4 = 148, ST5 = 165, ST6 = 95
According to the formula:
Average = Sum Total / Number
Sum Total = 65 + 126 + 135 + 148 + 165 + 95 = 734
Average = 734 / 6 = 122.33 hours