a girl is given $15 by her parents. she has two options of how to spend the money. she can either save the money for future purchases or she can start a lemonade stand on her driveway. if she spends her $15 on the lemonade stand, there is a 50% probability she will lose $10 and a 50% probability she will make $12. assuming the girl has a square root utility function, what should the girl do with the money?
