JEE Main 2019 Mathematics question
Two integers are selected at random from the set {1, 2, …., 11}. Given that the sum of selected numbers is even, the conditional probability that both the numbers are even is:
Answer: (A)
Solution
.
Two integers are selected at random from the set {1, 2, …., 11}. Given that the sum of selected numbers is even, the conditional probability that both the numbers are even is:
.