In a class of 30 students, the marks scored..

Question 1 Report

In a class of 30 students, the marks scored in an examination are displayed in the histogram. What percentage of the student scored more than 40%?

14%

40%

\frac{3}{4}

\frac{1}{3}

Answer Details

This histogram is transferred into this frequency table
$\begin{array}{cc} M a r k s & 20 & 40 & 60 & 80 & 100 \\ s t u d e n t s & 9 & 7 & 6 & 6 & 2 \end{array}$

Students who scored more than 40 = 6 + 6 + 2 = 14

i.e. $\frac{14}{30}$ x 100% = 46 $\frac{3}{4}$ %

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