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Suppose the number of tonsillectomies performed in three cities of equal size is 4 in City A, 6 in City B, and 5 in City

Suppose the number of tonsillectomies performed in three cities of equal size is 4 in City A, 6 in City B, and 5 in City C.
1. Calculate the Coefficient of Variation between the three cities. Show your work.
2. Is this a high or low COV? Does this imply agreement or disagreement about the way to use this specific medical procedure?

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