Professor Woo noticed that the distribution of her students' scores on the last biology test had an extremely small standard deviation.This indicates that the

A) test was given to a very small class of students.
B) test was a poor measure of the students' knowledge.
C) students generally performed very well on the test.
D) students' scores tended to be very similar to one another.

Question

Vivian Azouz · Accepted Answer

Final Answer : D, Explanation :  A small standard deviation indicates that the scores were tightly clustered around the mean, meaning that the students' scores tended to be very similar to one another.

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