An instructor who taught two sections of engineering statisticslast term, the first with 25 students and the second with 30,decided to assign a term project. After all projects had beenturned in, the instructor randomly ordered them before grading.Consider the first 15 graded projects.
(a) What is the probability that exactly 13 of these are fromthe second section? (Round your answer to four decimalplaces.)
(b) What is the probability that exactly 9 of these are from thefirst section? (Round your answer to four decimalplaces.)
(c) What is the probability that at all 15 of these are from thesame section? (Round your answer to six decimal places.)
If you could please explain how to do it out on acalculator that would be much appreciated as the exam will ask usto solve this problem using a TI 84 plus CE.
