Step 2 This is a binomial experiment with n 18 trials Let a success be that a student withdraws from the course It is given that 15 of students withdraw Recall the method used to find the probability of an event given a percentage probability Thus the probability p a student withdraws from the course is as follows given percentage probability 100 p 0 15 given percentage 100 0 4797 100 X X For 2 or fewer students to withdraw from the course means that exactly Select students withdraw Therefore x will be 0 and 1 probability that 2 or fewer students withdraw from the course will be Select Submit Skip you cannot come back X The probability of each x value is f x so the