document.write( "Question 43851: The first test in Introductory Algebra had a mean of 82 with a standard deviation of 15. If a student made a 94 on the test, what is the corresponding z-score?\r
\n" ); document.write( "\n" ); document.write( "a) -0.58 b) -0.47 c) 0.47 d) 0.80 e) NOT
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Algebra.Com's Answer #28866 by fractalier(6550)\"\" \"About 
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The z score is found by
\n" ); document.write( "z = (x - mean)/sigma
\n" ); document.write( "z = (94-82)/15
\n" ); document.write( "z = 12/15 = .8
\n" ); document.write( "Choice d.
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