SOLUTION: If you have 20 women what is the probability they all have girls? I know that each mom has a 1/2 chance of having a girl (.5)
P(all 20 offsprings are female) =
My book says
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Question 816629: If you have 20 women what is the probability they all have girls? I know that each mom has a 1/2 chance of having a girl (.5)
P(all 20 offsprings are female) =
My book says the answer is 0.000000954. How do I get that answer? I tried using my calculator and imputing .5^20. Did not work.
Help appreciated :).
Found 2 solutions by erica65404, richwmiller:
Answer by erica65404(394) (Show Source): You can put this solution on YOUR website!
there might be something wrong with your calculator or you might have entered it wrong. I entered it just like this
It gave me an answer of .000000954. You did the problem right.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
you have the right idea but used your calculator incorrectly it is.
.5^20
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