JEE Mains · Maths · STD 12 - 13. probability
Three defective oranges are accidently mixed with seven good ones and on looking at them, it is not possible to differentiate between them. Two oranges are drawn at random from the lot. If \(x\) denote the number of defective oranges, then the variance of \(x\) is
- A 28/75
- B 18/25
- C \(26 / 75\)
- D \(14 / 25\)
Answer & Solution
Correct Answer
(A) 28/75
Step-by-step Solution
Detailed explanation
There are 3 bad oranges and 7 good oranges. \(\therefore \quad X=\) number of bad oranges drawn. \(\therefore\) Variance…
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