A bag contains 50 candies of 2 different flavours: 30 are strawberry, 20 are lemon.

a) If 2 candies are drawn at random, one by one without replacement, the distribution of X = number of strawberry candies is:

and the probability that the 2 candies are lemon is approximately:

b) If two candies are drawn at random, one by one with replacement, the distribution of Y = number of strawberry candies is:

and the probability that the 2 candies are strawberry is approximately: