On a recent biology quiz, the class mean was 18 with a standard deviation of 2.6. Calculate the z-score (to 4 decimal places) for a person who received score of 21. z-score for Biology Quiz: The same person also took a midterm in their marketing course and received a score of 81. The class mean was 78 with a standard deviation of 6. Calculate the z-score (to 4 decimal places). z-score for Marketing Midterm: Which test did the person perform better on compared to the rest of the class? Find the coefficient of variation for the Biology Quiz. Give answer as a percent to 3 decimal places.C-Var for Biology Quiz: %Find the coefficient of variation for the Marketing Midterm. Give answer as a percent to 3 decimal places.C-Var for Marketing Midterm: %Which test scores were more variable?

Question

On a recent biology quiz, the class mean was 18 with a standard deviation of 2.6. Calculate the z-score (to 4 decimal places) for a person who received score of 21.
z-score for Biology Quiz:
The same person also took a midterm in their marketing course and received a score of 81. The class mean was 78 with a standard deviation of 6. Calculate the z-score (to 4 decimal places).
z-score for Marketing Midterm:
Which test did the person perform better on compared to the rest of the class?
Find the coefficient of variation for the Biology Quiz. Give answer as a percent to 3 decimal places.
C-Var for Biology Quiz: %
Find the coefficient of variation for the Marketing Midterm. Give answer as a percent to 3 decimal places.
C-Var for Marketing Midterm: %
Which test scores were more variable?

 

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