A study was conducted to determine whether there were significant differences between college students admitted through

[answerhappygod]

A study was conducted to determine whether there were
significant differences between college students admitted through
special programs (such as retention incentive and guaranteed
placement programs) and college students admitted through the
regular admissions criteria. It was found that the graduation rate
was 92.3% for the college students admitted through special
programs.

If 12 of the students from the special programs are randomly
selected, find the probability that at least 11 of them
graduated.
prob =

If 12 of the students from the special programs are randomly
selected, find the probability that eactly 9 of
them graduated.
prob =

Would it be unusual to randomly select 12 students from the special
programs and get exactly 9 that graduate?
If 12 of the students from the special programs are randomly
selected, find the probability that at most 9 of
them graduated.
prob =

Would it be unusual to randomly select 12 students from the special
programs and get at most 9 that graduate?
Would it be unusual to randomly select 12 students from the special
programs and get only 9 that graduate?