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Below is the histogram of number of hours spent by students on mobile phones. How many students spend more than 2 hours and less than 5 hours on mobile phone?(a) 31(b) 43(c) 22(d) 21The question was posed to me in a national level competition.Asked question is from Data Handling topic in chapter Data Handling of Mathematics – Class 8

Answer»

Correct answer is (C) 22

To explain I would say: The HEIGHT of the bar represents the number of DATA items in the given data range called frequency. The number of students spending more than 2 hours and less than 5 hours on mobile PHONE is SUM of frequency of 2-3, 3-4 and 4-5 which is 22.



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