<PRE><B>Question 517963</B>
For each of the three events in the table, check the outcome(s) that are contained in the event. Then, in the last column, enter the probability of the event. 
Event: A boy on the 2nd birth:: BBG,GBB,BBB,GBG ;;;Prob = 4/8 = 1/2
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Event: Exactly one girl::GBB,BGB,BBG::: Prob = 3/8
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Event: Two or more girls:::GGG,GGB,GBG,BGG::: Prob = 3/8
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Outcome grid includes: BGB, GGG, BBG, GBB, BBB, BGG, GBG, GGB 
And probability for each event?
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Cheers,
stan H.</PRE>