document.write( "Question 667615: A distribution of values is normal with a mean of 231.6 and a standard deviation of 62.4.\r
\n" ); document.write( "\n" ); document.write( " Find the probability that a randomly selected value is less than 312.7.
\n" ); document.write( "P(X < 312.7) =
\n" ); document.write( "

Algebra.Com's Answer #415110 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A distribution of values is normal with a mean of 231.6 and a standard deviation of 62.4.
\n" ); document.write( "Find the probability that a randomly selected value is less than 312.7.
\n" ); document.write( "P(X < 312.7) =
\n" ); document.write( "----
\n" ); document.write( "z(312.7) = (312.7-231.6)/62.4 = 1.3000
\n" ); document.write( "----
\n" ); document.write( "P(x < 312.7) = P(z < 1.3000) = 0.9031
\n" ); document.write( "================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "================
\n" ); document.write( "
\n" );