The bar chart above shows the distribution of marks in a class test. If the pass mark is 5, what percentage of students failed the test?
A.
10%
B.
20%
C.
50%
D.
60%
Correct answer is C
Number that score less than 5: 5 + 6 + 4 + 3 + 2 = 20
Total number of students: 5 + 6 + 4 + 3 + 2 + 4 + 6 + 5 + 1 + 3 + 1 = 40.
%age of students that failed: \(\frac{20}{40} \times 100% = 50%\)