1. A bag contains blue and red balls. Two balls are drawn randomly without replacement. The probability of
selecting a blue and then a red ball is 0.2. The probability of selecting a blue ball in the first draw is 0.5. What is the probability of drawing a red ball, given that the first ball drawn was blue?
2. A die is rolled thrice. What is the probability that the sum of the rolls is atleast 5.
Statistics and Probability