Question #$1$: Measuring Risk and Return $[18$ Points$]$

Use the following table to answer Parts $($a$)-($b$)$

Casey's General Stores, Inc. $($CASY$)$ has the following probability distribution of $1$ year returns on its stock.

$\backslash$table$[[$State of the Economy,Probability,Return$],[$Boom$,0\mathrm{.}18,41\%$