document.write( "Question 1020330: The lengths of pregnancies in a small rural village are normally distributed with a mean of 270 days and a standard deviation of 12 days. A distribution of values is normal with a mean of 270 and a standard deviation of 12.\r
\n" ); document.write( "\n" ); document.write( "What percentage of pregnancies last fewer than 294 days?
\n" ); document.write( "P(X < 294 days) = \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Enter your answer as a percent accurate to 1 decimal place (do not enter the \"%\" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
\n" ); document.write( "

Algebra.Com's Answer #636354 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Find the z score.
\n" ); document.write( "\"z=%28294-270%29%2F12=24%2F12=2\"
\n" ); document.write( "Find the corresponding probability,
\n" ); document.write( "\"P%282%29=0.97725\"
\n" ); document.write( "
\n" ); document.write( "
\n" );