A committee of three people is selected at random from a set consisting of six teachers, three parents of students, and seven alumni. a. What is the probability of the event that the committee consists of all teachers? b. What is the probability of the event that the committee has no teachers? a. The probability the committee consists of all teachers is. (Type an integer or a simplified fraction.) b. The probability the committee has no teachers is. (Type an integer or a simplified fraction.)

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A committee of three people is selected at random from a set consisting of six teachers, three parents of students, and seven alumni.
a. What is the probability of the event that the committee consists of all teachers?
b. What is the probability of the event that the committee has no teachers?
a. The probability the committee consists of all teachers is.
(Type an integer or a simplified fraction.)
b. The probability the committee has no teachers is.
(Type an integer or a simplified fraction.)
Enter your answer in each of the answer boxes.
Prt Scn.
Home
DII
* 12
F3
F1
Transcribed Image Text:A committee of three people is selected at random from a set consisting of six teachers, three parents of students, and seven alumni. a. What is the probability of the event that the committee consists of all teachers? b. What is the probability of the event that the committee has no teachers? a. The probability the committee consists of all teachers is. (Type an integer or a simplified fraction.) b. The probability the committee has no teachers is. (Type an integer or a simplified fraction.) Enter your answer in each of the answer boxes. Prt Scn. Home DII * 12 F3 F1
Expert Solution
Step 1

Given, Total number of teachers= 6

Number of parents = 3

Number of Alumni = 7

Committee of 3 is to be chosen,

a) 

Pcommitee consist of all teachers=Number of possible waysTotal number of ways=C36C316=6!3!3!16!13!3!Pcommitee consist of all teachers=6×5×416×15×14=1203360=128

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