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 X 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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