CUET Mathematics 2026 26th May Shift 2 PYQs

An urn contains 5 red and 5 black balls. A ball is drawn at random, its color is noted and is returned to the urn. Moreover, 2 additional balls of the same color are put in the urn and then a ball is drawn at random. The probability that the second drawn ball is red, is:

If A and B are two events such that $P(A|B) = P(B|A)$, and $A \cap B \neq \phi$ then

Suppose X has Poisson distribution such that $3 P(X=1) = 2 P(X=2)$ then $P(X>0)$ is: