Question

What is Cumulative Frequency Curve ? ​

Answer 1

Answer:

A curve that represents the cumulative frequency distribution of grouped data on a graph is called a Cumulative Frequency Curve.

For example: Let the raw data be 2, 10, 18, 25, 15, 16, 15, 3, 27, 17, 15, 16. The cumulative frequency of 15 = 6 (Since, values ≤ 15 are 2, 10, 15, 15, 3, 15).

The cumulative frequency of a class interval (overlapping or nonoverlapping) is the sum of the frequencies of earlier class intervals and the concerned class interval.

Answer 2

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