Is there a difference in the variation of the yields of different types of investments? The file

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Is there a difference in the variation of the yields of different types of investments? The file IndexReturn contains data about the performance of 38 indexes across the world as of July 2018.

a. For one-year and five-year returns, separately compute the variance, standard deviation, range, and coefficient of variation.

b. Based on the result in (a), do one-year or five-year returns have more variation? Explain.

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