Need help to solve homework problem from 6.6 Triola stats. Please provide explanation and steps using TI-84 calc:

Agender-selection technique is designed to increase the likelihood that a baby will be a girl. In the results of thegender-selection technique, 991 births consisted of 509 baby girls and 482 baby boys. In analyzing theseresults, assume that boys and girls are equally likely.

a.Find the probability of getting exactly 509 girls in 991 births.

b.Find the probability of getting 509 or more girls in 991 births. If boys and girls are equallylikely, is

509 girls in 991 births unusuallyhigh?

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

d. Based on theresults, does it appear that thegender-selection technique iseffective?

a. The probability of getting exactly 509 girls in 991 births is

(Round to four decimal places asneeded.)

b. The probability of getting 509 or more girls in 991 births is

(Round to four decimal places asneeded.)

If boys and girls are equallylikely, is 509 girls in 991 births unusuallyhigh?

YES OR NO?

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

d. Based on theresults, does it appear that thegender-selection technique iseffective?

YES OR NO?