Asked by Kavya
The probability that a student is not swimmer is 1/5.find the probability that out of 5 students (1) at least 4 are swimmers and (2)at most 3 are swimmers
Answers
Answered by
Reiny
prob(swim)=4/5
prob(not swim) = 1/5
prob(at least 4 swim)
= prob(4of5 swim)+prob(5of5 swim)
= C(5,4) (4/5)^4 (1/5) + (4/5)^5
= ....
#2
how does "at most 3 are swimmers" relate to what we just found ?
prob(not swim) = 1/5
prob(at least 4 swim)
= prob(4of5 swim)+prob(5of5 swim)
= C(5,4) (4/5)^4 (1/5) + (4/5)^5
= ....
#2
how does "at most 3 are swimmers" relate to what we just found ?
Answered by
Ruka
Multiply on both sides mat 1/5
()()())())
()()())())
Answered by
Ruka
Multiply on both sides mat 1/5
P (x)=1/5
P (x)=1/5
Answered by
Karishma
At most 3 are swimmer i didn't got these
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.