Asked by Anonymous
A poll is given, showing 70% are in favor of a new building project.
If 7 people are chosen at random, what is the probability that exactly 5 of them favor the new building project?
If 7 people are chosen at random, what is the probability that exactly 5 of them favor the new building project?
Answers
Answered by
bobpursley
Pr(exactly5)=.7^5 * .3^2 * C(7,5)
C(7,5)=7!/5!*2!=21
Pr= 21*.7^5*.3^2=.318
C(7,5)=7!/5!*2!=21
Pr= 21*.7^5*.3^2=.318
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.