SOLUTION: Find the probability of at least 2girls in 9 births. Assume male/female are equally likely and births are independent events.
Algebra ->
Probability-and-statistics
-> SOLUTION: Find the probability of at least 2girls in 9 births. Assume male/female are equally likely and births are independent events.
Log On
Question 762765: Find the probability of at least 2girls in 9 births. Assume male/female are equally likely and births are independent events. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Find the probability of at least 2girls in 9 births. Assume male/female are equally likely and births are independent events.
--------------
Binomial Problem with n = 9 and p(girl) = 1/2
--------
P(2<= x <=9) = 1 - P(0<= x <=1) = 1 - binomcdf(9,1/2,1) = 0.9805
===============
Cheers,
Stan H.
===============
(