please answer the following systematically, show the complete solution

18. A random sample of 500 adults are classified below according to sex and the level of education Male Female Elementary 38 45 Secondary 28 50 College 22 17 If a person is picked at random from this group, find the probability that a) the person is a male, given that the person has a secondary education b) the person does not have a college degree, given that the person is a female 19. A card is drawn from an ordinary deck of cards and we are told that it is red. What is the probability that the card is greater than 2 but less than 9