DON\'T ANSWER UNLESS YOU ANSWER BOTH QUESTIONS..... Homework: HW3 Score: 0 of 1

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DON'T ANSWER UNLESS YOU ANSWER BOTH QUESTIONS.....

Homework: HW3 Score: 0 of 1 pt 5.2.29 Save 50 of 51 (49 complete) HW Score: 90.69%, 46.25 of 51 pts Question Help Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a girl, but assume that the method has no effect, so the probability of a girl is 0.5. Assume that the groups consist of 24 couples. Complete parts (a) through (c) below. a. Find the mean and the standard deviation for the numbers of girls in groups of 24 births. The value of the mean is u- (Type an integer or a decimal. Do not round.)

Explanation / Answer

Ans:

1)Given that

n=24,p=0.5

mean=np=24*0.5=12

standard deviation=sqrt(np(1-p))=sqrt(24*0.5*(1-0.5))=2.4495

2)Given that

n=32,p=0.25

mean=np=32*0.25=8

standard deviation=sqrt(np(1-p)=sqrt(32*0.25*(1-0.25))=2.4495

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