document.write( "Question 443690: A set of data items is normally distributed with a mean of 80 and a standard deviation of 4. Convert 89 to a z-score. \n" ); document.write( "

Algebra.Com's Answer #306039 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi\r
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document.write( "mean of 80 and a standard deviation of 4
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document.write( "*Note:   | x = 89
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document.write( "   z = (89-80)/4 = 9/4 = 2.25
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