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]

Question : 9 of 44

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