document.write( "Question 847574: Over what grade should we find the 10 best students out of 37 in a test with a average of 82 and a standard deviation of 5? \n" ); document.write( "

Algebra.Com's Answer #510559 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "m= 82, sd = 10, n = 37 (top 10)   0r top 27 percentile
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document.write( "Normsinv(.135) =  z = 1.102 = (x - 81)/7
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document.write( "    .6128 = (x - 82)/10
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document.write( "     6.128 + 82 = 88.128   Over an 89 test score \n" );
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