math
posted by Justin .
in a family with two children, what are the probabilities of two boys, the first is a girl the second is a boy, neither is a girl, at least one girl, assuming that the birth of boys and girls is equally likely.

The different possibilities are:
bb
bg
gb
gg
From this, you can figure out how many of the four possibilities fit. (Having two boys is the same as having no girls.)
I hope this helps. 
in a family with two children, what are the probabilities of two boys, the first is a girl the second is a boy, neither is a girl, at least one girl, assuming that the birth of boys and girls is equally likely.
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