The bar chart shows the distribution of marks scored by 60 pupils in a test in which the maximum score was 10. If the pass mark was 5, what percentage of the pupils failed the test?
-
A.
59.4% -
B.
50.0% -
C.
41.7% -
D.
25.0%
Correct Answer: Option C
Explanation
(begin{array}{c|c} x & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \ hline f & 1 & 9 & 4 & 7 & 10 & 8 & 7 & 9 & 8 & 2 & 1end{array})
no pupils who failed the test = 1 + 3 + 4 + 7 + 10
= 25
5 of pupils who fail = (frac{25}{60}) x 100%
= 41.70%