Asked by angela
In a region, 90% of the population have brown eyes. If 15 people are randomly selected, find the probability that at
least 13 of them have brown eyes. Is it
unusual to randomly select 15 people and find that at least 13 of them have brown eyes? Why or why not?
least 13 of them have brown eyes. Is it
unusual to randomly select 15 people and find that at least 13 of them have brown eyes? Why or why not?
Answers
Answered by
Kuai
P(X ≥ 13) = P (X= 13) + P (X = 14) + P (X = 15)
P(X ≥ 13) =(15C13)(.9)^13(.1)^2+ (15C14)(.9)^14(.1)^1+ (15C15)(.9)^15(.1)^0
= .8159
P(X ≥ 13) =(15C13)(.9)^13(.1)^2+ (15C14)(.9)^14(.1)^1+ (15C15)(.9)^15(.1)^0
= .8159
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.