The provided data is as follows; A-10, B-4, C-3, D-1, F-2.

Question 22 that is referred to in the first question was found to be .1, or 10%

Question 19 that is referred to in the second question was found to be .2, or 20%

Question 18 that is referred to in the third question was found to be .5, or 50%

.IF the records show thatJ the probability of failing (with grade F} this course is p, [use the answer to question 22 above as the probability, p, here], what is the probability that at most 2 students out of 28 Fail this course? {Hint: use binomial distribution} .IF the records show thatJ the probability for a student to get a grade B this course is p, [use the answer to question 19 above as the probability, by here], what is the probability that exactly 4 students out of 23 will have a grade B for the course? {Hint: use binomial distribution} .Hhat is the probability of selecting a grade A student for the First time either in 2nd or 3rd selection? {Hint: use Geometric distribution with p value as the answer for question 18}