document.write( "Question 874729: The time required to finish a test in normally distributed with a mean of 40 minutes and a standard deviation of 8 minutes. What is the probability that a student chosen at random will finish the test between 24 & 48 minutes ?
\n" ); document.write( "A.82%
\n" ); document.write( "B.2%
\n" ); document.write( "C.84%
\n" ); document.write( "D.16%
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #527760 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
P( 24 < x < 48) = P(z <1) - P(z < -2) = .84 - .02 = .82 0r 82% \n" ); document.write( "
\n" );