document.write( "Question 375979: assume the probability is 1/2 that a child born is a girl if a family has three children. What is the probabilty of getting 1 girl is ___?
\n" ); document.write( " the probability of getting at most two girls___? \n" ); document.write( "

Algebra.Com's Answer #267410 by Fombitz(32388) $\"\"$ $\"About$

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For $\"3\"$ children, there are $\"2%5E3\"$ possible outcomes.
\n" ); document.write( "GGG
\n" ); document.write( "GGB
\n" ); document.write( "GBG
\n" ); document.write( "GBB
\n" ); document.write( "BGG
\n" ); document.write( "BGB
\n" ); document.write( "BBG
\n" ); document.write( "BBB
\n" ); document.write( "Of those, the outcomes with 1 G are $\"3\"$ .
\n" ); document.write( " $\"P%281+G%29=3%2F8\"$
\n" ); document.write( "Getting at most two girls means not $\"3\"$ girls.
\n" ); document.write( "P(3 G)= $\"1%2F8\"$
\n" ); document.write( "P(not 3 G)+P(3G)= $\"1\"$
\n" ); document.write( "P(not 3 G)=P(at most 2G)= $\"1-1%2F8=7%2F8\"$ \n" ); document.write( "

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