Liqin Fixes Up Old Cars and Sells Them to Supplement

Essay

Liqin fixes up old cars and sells them to supplement his retirement income. Liqin came across a beat-up 1955 Corvette that he is considering rebuilding and selling. He estimates a 0.2 probability that he will gain 15% on the deal, a 0.2 probability that he will gain 10%, and a 0.6 probability that he will gain 5%. What is Liqin's expected return for fixing up and selling the Corvette?