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Question
Below is the histogram depicting marks obtained by 43 students of a class:
(i) Write the number of students getting the highest marks.
(ii) What is the class size?
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Solution
(i) In the given histogram, the interval with the highest marks is 90-100.
Three students are there in this interval because the height of the rectangle (90-100) is 3 units.
(ii) The class intervals are 10-20, 20-30, ..., 90-100. So, the class size is 10.
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