Suppose stock X has a price of $100 today. There are three
possible scenarios one year later as detailed below. Let R denote
the one-year return of stock X (today to one year later).Scenario 1 Probability 20%, Stock price $80,
Dividend $0Scenario 2 Probability 50%, Stock price $105,
Dividend $5Scenario 3 Probability 30%, Stock price $140,
Dividend $5Calculate: (a) R in each of these three scenarios, and(b) The volatility of R.