1. Discuss the concepts of random variable and a probability distribution.
2. A university found that 20% of its students withdraw without completing the introductory statistics course. Assume that 20 students registered for the course.
a. Compute the probability that 2 or fewer will withdraw
b. Compute the probability that exactly 4 will withdraw
c. Compute the probability that more than 3 will withdraw
d. Compute the expected number of withdrawals© BrainMass Inc. brainmass.com October 10, 2019, 2:01 am ad1c9bdddf
This solution clarifies random variables and probability distributions.