5. Diseases A and B are prevalent among a certain population. It is assumed that 12% of the population will contract disease A in their lifetime, 16% will contract disease B in their lifetime, and 5% will contract both diseases. [show formula used] [2] So.... P(A) = 0.12, P(B) = 0.16, P(Aand B) = 0.05 a) Find the probability a randomly chosen person from this population will contract either disease A or B. b) Find the probability a randomly chosen person from this population will contract disease B, given that they've already contracted disease A. 6. A sales manager has a success rate of 55% for each meeting that she attends. This week, she will attend 3 meetings. [4] a) Make a probability distribution table for the number of sales she will make this week. b) What is the expected value for the number of sales that she will make this week? (hint: should only need one line for this!)