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.

For the one-year and five-year returns separately:

a. Compute the first quartile (Q1), the third quartile (Q3), and the interquartile range.

b. List the five-number summary.

c. Construct a boxplot and describe its shape.

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