Test Index

NDA Math Statistics Part 2

Consider the following frequency distribution for the next three (03) items that follow Q.No 118 - 120 :

Class	0−20	20−40	40−60	60−80	80−100
Frequency	17	p+q	32	p−3q	19

The total frequency is 120 . The mean is 50 .

[NDA-I 2022]

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