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Message
re: Cashier at store told me one guy has spent $4000 on Powerball
Posted on 1/13/16 at 8:03 am to tiggerthetooth
Posted on 1/13/16 at 8:03 am to tiggerthetooth
quote:No. Boy/Girl must be includes with Girl/Boy. In other words, there are two possiblities of having a boy (twin 1 or twin 2); it's like flipping a coin. HERE Is a good explanation.
Identical boys Identical girls Fraternal Boys Fraternal Girls Fraternal girl/boy Identical boy/girl 4/6 = 2/3
The four outcomes are as follows:
BB
GG
BG
GB
So it's 3/4.
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