document.write( "Question 752525: how do you get the mean of a quiz score when the student scored 469 and the z score is -3 and the standard deviation is 7? I am feeling lost or maybe tired
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Algebra.Com's Answer #457790 by reviewermath(1029)\"\" \"About 
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Q:
\n" ); document.write( "how do you get the mean of a quiz score when the student scored 469 and the z score is -3 and the standard deviation is 7? I am feeling lost or maybe tired
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\n" ); document.write( "A:
\n" ); document.write( "z score = \"%28x+-+mu%29%2Fsigma\"
\n" ); document.write( "-3 = \"%28469+-+mu%29%2F7\", multiply both sides by 7
\n" ); document.write( "-21= \"469+-+mu\"
\n" ); document.write( "\"mu+\" = 469 + 21 = 490
\n" ); document.write( "The mean of a quiz score is \"highlight%28490%29\".
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