1
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Question

# If we draw a histogram for the class interval 15 - 30, what will be the value of 'a' ?

A
3
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B
11
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C
4
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D
7
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Solution

## The correct option is D 7Comparing the table and the graph we can pbserve c= 15 d = 30 When a frequency distribution table is depicted using histograms, the number of tally marks of a class interval is represented using the height of bars in the histogram. Here, when the class interval 15 - 30 is depicted in a histogram since the tally marks are 7, the value of a = 7, as the height of the bar is 7.

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