Homework:6.6 HW

Question 6, 6.6.13-T

Part 1 of 5

HW Score: 66.82%, 7.35 of 11 points

Points: 0 of 1

Save

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,

840

births consisted of

430

baby girls and

410

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

a. Find the probability of getting exactly

430

girls in

840

births.

b. Find the probability of getting

430

or more girls in

840

births. If boys and girls are equally likely, is

430

girls in

840

births unusually high?

c. Which probability is relevant for trying to determine whether the technique is effective: the result from part (a) or the result from part (b)?

d. Based on the results, does it appear that the gender-selection technique is effective?