Question

1. Suppose that a biology class is taught by six different teachers, simply named A, B, C, D, E, and F. Don is planning on taking this course from one of these six teachers. He will select one and only one instructor among A – F. Suppose the likelihood of taking a course from A – F for Don is .45, .25, .12, .05, .1, and .03, respectively. What is the probability that Don will take a course from instructor A or C given that instructors B and D have full classes when he registers, which are unavailable to Don? Determine your answer and explain your reason for this answer.

Answer 1