Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Engineering Mathematics Probability Conditional Probability
A bag contains 10 white balls and 5 blue balls. A ball is drawn from the bag and its color is noted. This ball is put back in the bag along with 3 more balls of the same color. A ball is drawn again from the bag at random. The probability that the first ball drawn is blue, given that the second ball drawn is blue, is:
1
1 / 3
2
3 / 4
3
8 / 9
4
4 / 9