2.a. It is reported that for the Bangladeshi adult population as a whole, 55% are above normal weight, 30% have high blood pressure. and 70% either are above ideal weight or have high blood pressure. If A is the event that a randomly chosen person is above hisfher normal weight and B is the event that this person has high blood pressure. are A and B independent? (4) b. A class is made up of 20 girls and 15 boys. It is decided to distribute 6 tickets by lottery to 6 students of the class. What is the probability that the tickets go to 3 boys and 3 girls. (2) c. Why weight cannot be measured in a discrete scale? (4)