For the following distribution,
Class interval Frequency
0-5 10
5-10 15
10-15 12
15-20 20
20-25 9
find the sum of lower limit of the median class and modal class.
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Answer:
The highest frequency is 20, which lies in between the interval 15 – 20. Hence, lower limit of modal class is 15. Therefore, required sum is 10 + 15 = 25.
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