SOLUTION: Karl Schmidt just scored a 96 on his last biology unit test. The mean score of the 36 students in his class was 78, and the standard deviation was 12. What is Karl�s z-score?

Question 154985: Karl Schmidt just scored a 96 on his last biology unit test. The mean score of the 36 students in his class was 78, and the standard deviation was 12. What is Karl�s z-score?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Karl Schmidt just scored a 96 on his last biology unit test. The mean score of the 36 students in his class was 78, and the standard deviation was 12. What is Karl�s z-score?
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Formula:
z(x) = (x-u)/sigma
z(96) = (96-78)/12 = 18/12 = 1.5
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Cheers,
Stan H.
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