Integrative $-$ Expected return, standard deviation, and coefficient of variation Perth Industries is studying an asset. The probability distribution of returns for this asset is shown in the following table,

a$.$ Calculate the expected value of return, $\frac{?}{\text{b}\text{a}\text{r}}(r),$ for the asset.

b$.$ Calculate the standard deviation, ${}_r,$ for the asset's returns.

c$.$ Calculate the coefficient of variation, $CV,$ for the asset's returns.

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