Question

probability Jeanie is a bit forgetful, and if she doesn't make a "to do" list, the probability that she forgets something she is supposed to do is .2. Tomorrow she intends to run three errands, and she fails to write them on her list . What is the probability that Jeanie remembers the first errand but not the second or third?

Answer 1

the probability that Jeanie remembers the first errand but not the second or third = (1 - 0.2) x 0.2 x 0.2 = 0.032