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Boys and Girls: Suppose a couple plans to have two children and the probability of having...

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Statistics

Boys and Girls: Suppose a couple plans to havetwo children and the probability of having a girl is 0.50.

(a) What is the sample space for the gender outcomes?

{bb, bg, gg}

{b,g}    

{bb, bg, gb, gg}

{bb, gg}


(b) What is the probability that the couple has one boy and onegirl?

1
3
1
4

     

1
2
3
4


(c) What is the probability that the couple will have at least onegirl?

1
4
1
3

     

3
4
1
2


(d) What is the probability that the couple will have no girls?

1
2
1
3

     

1
4
3
4

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