Asked by Mike
The local video store has determined that 65% of the store's customers are women. What is the probability that the next 3 customers will be women? Round to the nearest percent.
Answers
Answered by
Damon
p = .65
(1-p) = .35
binomial distribution, n = 3
binomial coefs for n = 3 are 1, 3, 3, 1
probability of three women, zero men in three = coef(3,0)(p)^3 (1-p)^0
= 1 (.65)^3 (1)
= .2746 = 27%
(1-p) = .35
binomial distribution, n = 3
binomial coefs for n = 3 are 1, 3, 3, 1
probability of three women, zero men in three = coef(3,0)(p)^3 (1-p)^0
= 1 (.65)^3 (1)
= .2746 = 27%
Answered by
Damon
Of course I made this too hard. Since it is the trivial case of all the same, not for example two men and one woman, you could just say 3 independent events each with a probability of .65 or .65^3
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.