The bar chart shows the distribution of marks scored by 60 pupils in a test...

JAMB 1998

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%

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Correct Answer: Option C

Explanation

\(\begin{array}{c|c} x & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\ \hline f & 1 & 9 & 4 & 7 & 10 & 8 & 7 & 9 & 8 & 2 & 1\end{array}\)
no pupils who failed the test = 1 + 3 + 4 + 7 + 10

= 25

5 of pupils who fail = \(\frac{25}{60}\) x 100%

= 41.70%

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