A university found that 25% of its students withdraw without completing the introductory statistics course. Assume that 30 students registered for the course. Use Microsoft Excel whenever necessary and answer the following questions: Compute the probability that 2 or fewer will withdraw? (4 decimals) Compute the probability that exactly 7 will withdraw?(4 decimals) Compute the probability that more than 10 will withdraw?(4 decimals) Compute the expected number of withdrawals. (1 decimal)