On a recent quiz, the class mean was 76 with a standard deviation of 2.6. Calculate the z-score (to 2 decimal places) for a person who received score of 68.
z-score:
Is this unusual?
Unusual
Not Unusual
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Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity