document.write( "Question 611207: Can someone help me with this problem please.\r
\n" ); document.write( "\n" ); document.write( "Base on data gathered from the U.S. National Center for Health Statistics, the probability of a baby being born a girl, in a particular decade. was 0.487. what is the probability that a family who had three children that decade had all girls and the probability taht a family with three kids, all born during that decade, had at least one girl.\r
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Algebra.Com's Answer #384886 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Base on data gathered from the U.S. National Center for Health Statistics, the probability of a baby being born a girl, in a particular decade. was 0.487. what is the probability that a family who had three children that decade had all girls and the probability taht a family with three kids, all born during that decade, had at least one girl.
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\n" ); document.write( "Binomial Problem with n = 3 and p(girl) = 0.487 ; p(boy) = 0.513
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\n" ); document.write( "P(1<= x <=3) = 1 - P(x = 0)
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\n" ); document.write( "= 1 - 3C0(0.487)^0*(0.513)^3
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\n" ); document.write( "= 1 - 0.513^3
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\n" ); document.write( "= 0.865
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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