The given bar graph represents the pass percentage of 10th and 12th classes of a school during the consecutive four year period 2016-2019.
What is the average of percentage of the failed students of the 12th class for all four years?
Answer & explanation
Correct answer: option 4
Fail percentage in 12th class in 2016 = 100 - 71 = 29
Fail percentage in 12th class in 2017 = 100 - 82 = 18
Fail percentage in 12th class in 2018 = 100 - 66 = 34
Fail percentage in 12th class in 2019 = 100 - 86 = 14
Average of percentage of the failed students of the 12th class
= \(\frac{29 + 18 + 34 + 14 }{4}\)
= \(\frac{ 95 }{4}\)
= 23.75%