jee-main 2023 Q90

jee-main · India · session1_29jan_shift1 Hypergeometric Distribution

There rotten apples are mixed accidently with seven good apples and four apples are drawn one by one without replacement. Let the random variable X denote the number of rotten apples. If $\mu$ and $\sigma ^ { 2 }$ represent mean and variance of X , respectively, then $10 \left( \mu ^ { 2 } + \sigma ^ { 2 } \right)$ is equal to
(1) 20
(2) 250
(3) 25
(4) 30

There rotten apples are mixed accidently with seven good apples and four apples are drawn one by one without replacement. Let the random variable X denote the number of rotten apples. If $\mu$ and $\sigma ^ { 2 }$ represent mean and variance of X , respectively, then $10 \left( \mu ^ { 2 } + \sigma ^ { 2 } \right)$ is equal to\\
(1) 20\\
(2) 250\\
(3) 25\\
(4) 30

Paper Questions

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