The bar chart shows the distribution of marks in a class test. How many students took the test?
Attached Figure / Diagram
A
15
B
20
C
25
D
30
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
Number f students that took the test = \(\sum f\). Where f is the frequencies
= 2 + 5 + 0 + 3 + 4 + 0 + 0 + 2 + 3 + 1 + 2 = 20
Source: Myschool Past Questions Archive (Record #33021)