document.write( "Question 627336: Scores on a math midterm are distributed under a standard normal curve. A randomly selected had a score of 55, which represented a z score of -2.35. If the mean for the exam was 76, determine the standard deviation for the exam.\r
\n" ); document.write( "\n" ); document.write( "Does one have to use a graphing calculator to solve most of these types of question?
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Algebra.Com's Answer #394881 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi, Calculator will do
\n" ); document.write( "*Note: \"z+=+blue%28x+-+mu%29%2Fblue%28sigma%29\"
\n" ); document.write( " z = \"%2855+-+76%29%2FSD\" = -2.35
\n" ); document.write( " SD = \"-21%2F-2.35\" = 8.9362 \n" ); document.write( "
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