A statistics class at Wilmington College has 25 students of which 15 are math majors and 10 are business majors. The professor randomly selects five students to work together on a group project. What is the probability that three or four of the students in this group are business majors?
A)0.2965
B)0.4461
C)0.2154
D)0.1350

Question

Quizplus · Accepted Answer

The probability of selecting three or four business majors out of five students involves calculating the combinations of selecting business and math majors and dividing by the total combinations of selecting any five students. For three business majors, it's C(10,3)*C(15,2)/C(25,5), and for four business majors, it's C(10,4)*C(15,1)/C(25,5). Adding these probabilities gives the correct answer.

A Statistics Class at Wilmington College Has 25 Students of Which