Of the 30 students in the sixth period math class, 8 are also in the same fourth period science class. which can be used to determine the probability that if three students are chosen at random from the math class to do a group project, the first student chosen to be in the group is in the fourth period science class but the other two are not?
a. (8/30)(22/29)(21/28)
b. (8/30)(8/30)(8/30)
c. (8/30)(7/29)(6/28)
d. (8/30)(22/30)(21/30)

A.

Step-by-step explanation:

Given : Total number of students are in the sixth period math class = 30

Number of sixth period math class students are also in the same fourth period science class = 8

Number of students are not in the same fourth class = 30-8=22

Then , the  the probability that if three students are chosen at random from the math class to do a group project, the first student chosen to be in the group is in the fourth period science class but the other two are not will be :-

Hence, the correct answer is option A.

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract