document.write( "Question 902701: in a distribution of scores, X = 64 corresponds to z = 1, and X = 67 corresponds to z = 2. find the mean and standard deviaton for the distribution \n" ); document.write( "

Algebra.Com's Answer #547467 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%2864+-+m%29%2Fsd+=+1\"$ 64-m = sd
\n" ); document.write( " $\"%2867+-+m%29%2Fsd+=+2\"$
\n" ); document.write( " $\"%2867+-+m%29%2F%2864-m%29+=+2\"$
\n" ); document.write( "2(64-m) = 67-m
\n" ); document.write( "128 - 2m = 67-m
\n" ); document.write( " 61 = m
\n" ); document.write( "sd = 3
\n" ); document.write( " \n" ); document.write( "

\n" );