A local university administers a comprehensive examination


A local university administers a comprehensive examination to the recipients of a B.S. degree in Business Administration.

A sample of examinations are selected at random and scored.

The results are shown below.

Grade 93 65 80 97 85 87 97 60

For the above data, determine

Calculate the arithmetic average of the test scores

Calculate the Variance of the of the test scores

Calculate the standard Deviation of the of the test scores

Calculate the Coefficient of Variation of the of the test scores

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