How can a normal frequency distribution be converted into cumulative f – InterviewSolution

1.

How can a normal frequency distribution be converted into cumulative frequency distribution? Clarify with the help of an example.

Answer»

Normal Frequency Distribution:

Class-Interval	Frequency
0-10	4
10-20	16
20-30	20
30-40	8
40-50	2
Total	N=50

Cumulative Frequency Distribution:

Class- Interval	Frequency	Cumulative Frequency
0-10	4	4
10-20	16	20 (16+4)
20-30	20	40(20+20)
30-40	8	48 (40+8)
40-50	2	50 (48+2)
Total	N=50

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