To draw a histogram to represent the following frequency distribution:
Class Interval
5−10
10−15
15−25
25−45
45−75
Frequency
6
12
10
8
15
The adjusted frequency for the class 25−45 is:
A
6
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B
5
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C
3
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D
2
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Solution
The correct option is D2 The frequency distribution will consist of classes with an interval of 5. The class 25−45 includes four such classes with an interval of 5. Thus the adjusted frequency will be 84=2