SOLUTION: Assuming that boys and girls are equally likely, estimate the probability of getting more than 3600 girls in 6400 births.
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Question 289363: Assuming that boys and girls are equally likely, estimate the probability of getting more than 3600 girls in 6400 births. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Assuming that boys and girls are equally likely, estimate the probability of getting more than 3600 girls in 6400 births.
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mean = np = (1/2)6400 = 3200
std = sqrt(npq) = sqrt(1600) = 40
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Find the z-score of 3600
z(3600) = (3600-3200)/40 = 400/40 = 10
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P(x > 3600) = P(z > 10) = 7.8 x 10^(-24)
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Cheers,
Stan H.
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