Published by:
CGP EDU Academic Team
Published on: August 14, 2026
From a lot of 12 items containing 3 defectives, a sample of 5 items is drawn at random. Let the random variable 
denote the number of defective items in the sample. Let items in the sample be drawn one by one without replacement. If variance of 
is 
, where 
, then 
is equal to ____
Text Solution
Verified by ExpertsThe correct answer is:
71
(71)
Ans. 
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