document.write( "Question 824127: The ages of all kindergarten children are normally distributed with
\n" ); document.write( "mean 4 years and standard deviation 6 months.
\n" ); document.write( "What is the probability that a randomly chosen kindergarten child
\n" ); document.write( "will be older than 5 years, 4 months old?
\n" ); document.write( "Use Table A-2 and write your answer as a decimal with 4 decimal places.
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Algebra.Com's Answer #496112 by stanbon(75887)\"\" \"About 
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The ages of all kindergarten children are normally distributed with
\n" ); document.write( "mean 4 years and standard deviation 6 months.
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\n" ); document.write( "What is the probability that a randomly chosen kindergarten child
\n" ); document.write( "will be older than 5 years, 4 months old?
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\n" ); document.write( "Note: 5 yrs 4 months = 5 1/3 = 16/3 yrs
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\n" ); document.write( "z(16/3) = [(16/3)-(12/3))/(18/3) = (4/3)/(18/3) = 2/9
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\n" ); document.write( "P(x > 5yrs 4 mths) = P(z > 2/9) = normalcdf[(2/9),100] = 0.4121
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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