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Question
Find the cumulative frequency for the class interval '10-15'
Find the cumulative frequency for the class interval '10-15'Open in App
Solution
The correct option is A 14
We know that cumulative frequency is the sum of the frequencies of a class and all classes above it.
For the class interval '10- 15' the cumulative frequency is = 14
Since the frequency of class interval '0 - 5' is 5 ,the frequency of class interval '5 - 10' is 2 and the frequency of class interval '10- 15' is 7
⟹5 + 2 +7= 14
We know that cumulative frequency is the sum of the frequencies of a class and all classes above it.
For the class interval '10- 15' the cumulative frequency is = 14
Since the frequency of class interval '0 - 5' is 5 ,the frequency of class interval '5 - 10' is 2 and the frequency of class interval '10- 15' is 7
⟹5 + 2 +7= 14
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