Question: A study was conducted to determine whether there were significant differences between medical students admitted through special programs and those via normal admissions. It was found that graduation rate was 94% for those students admitted through special programs.

a. If 10 students from the special programs are randomly selected, find the probability that at least 9 of them graduated.

b. Would it be “unusual” to find that only 7 of 10 randomly selected graduated? Why or why not?