SOLUTION: What is the probability that out of 400 babies born, 205 or fewer will be girls? Assume that boys and girls are equally probable, and round your answer to the nearest tenth of a pe
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Question 1036050: What is the probability that out of 400 babies born, 205 or fewer will be girls? Assume that boys and girls are equally probable, and round your answer to the nearest tenth of a percent. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! This is a one sample proportion
z=(.5125-.50)/sqrt{(.5*.5)/400}
=0.0125/.025
probability that z <0.50=0.691 or 69.1%
