A gender-selection technique is designed to increase the likelihood that a baby will be a

girl. In the results of the gender-selection technique, 913 births consisted of 476 baby girls

and 437 baby boys. In analyzing these results, assume that boys and girls are equally

likely.

AFind the probability of getting exactly 476 girls in 913 births.

BFind the probability of getting 476 or more girls in 913 births. If boys and girls are

equally likely, is 476 girls in 913 births unusually high?

CWhich probability is relevant for trying to determine whether the technique is effective:

the result from part (a) or the result from part (b)?

DBased on the results, does it appear that the gender-selection technique is effective?

AThe probability of getting exactly 476 girls in 913 births is

(Round to four decimal places as needed.)