The probability of choosing a $24 shirtis 1/6, the probability of choosing a $30 shirt is 1/2, the probability of choosing a $36 shirt is 1/3. What is the expected value of the shirt?

Expected value = $24 * ( 1/6 ) + $30 * ( 1/2 ) + $36 * ( 1/3 )

= $4 + $15 + $12

= $31

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