Question 10 4 pts 4 students apply to a PhD program. The program accepts 70% of all applicants. Students are accepted and rejected independently of each other. Let the random variable X represent the number out of the 4 students who get accepted from the PhD Program. (Hint: Binomial distribution with n=4 and p=70%) What is the mean of the random variable? (round your answer to 4 decimal places)