Question

Below is the histogram of number of hours spent by students on mobile phones. How many students are represented in the given histogram?

(a) 43

(b) 53

(c) 10

(d) 21

The question was posed to me during an online interview.

Origin of the question is Data Handling in chapter Data Handling of Mathematics – Class 8

Answer 1

Correct option is (b) 53

The best I can explain: The height of the bar represents the number of data items in the given data range called frequency. The total students represented by given histogram is sum of frequency of 1-2, 2-3, 3-4 and 4-5 which gives us 53.