The mean for a statistics exam was 85. Karen calculated her own z-score to be +1.75 for her test result of 68 points. What is wrong with Karen's calculation?
A) A z-score cannot be calculated for ratio level data.
B) A z-score cannot be calculated for individual score results.
C) Her z-score should be negative.
D) Not enough information is provided.
Correct Answer:
Verified
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