SOLUTION: Estimate the probability of getting a baby girl in at least 8 of 15 births.
Algebra.Com
Question 629648: Estimate the probability of getting a baby girl in at least 8 of 15 births.
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Assuming P(girl) = 1/2, note that the binomial distribution is symmetric. This means that
 = P(x \le 7))
The sum of )
and )
is 1, so  = \frac{1}{2})
.
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