i need answer b-1 and b-2 with the requirements given in the questions

A game of chance offers the following odds and payoffs. Each play of the game costs $125. so the nel profit per play is the payoff less $125. Probability $500 5375 40 200 a-1. What is the expected cash payof? (Do not round Intermediate calculations. Round your answer to the nearest whole dollar amount.) Expected cash payoff $ 180 a-2. What is the expected rate of return? (Enter your answer as a percent rounded to the nearest whole number.) Expected rate of return 44 b-1. What is the variance of the expected returns? In the calculation, use the percentage values, not the decimal values for the rates of return. Do not round intermed calculations. Round your answer to the nearest whole number.) Variance b-2. What is the standard deviation of the expected returns ? (Do not found intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Standard deviation 10:48 PM e 9 Chapter 7 Home New Microsoft Wor