Question 574210
How is it written in a probability form, this question. If a family wants 3 kids, what are their chances of having at least one boy?
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P(at least one boy) 
= 1 - P(3 girls) 
= 1 - (1/2)^3 
= 1-(1/8) 
= 7/8
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Cheers,
Stan H.