Need help with parts B and C. Please advise. See attached.

A construction rm bids on a contract. It anticipates a prot of $40,000 if it gets the contract for the full project, and it estimates a prot of $10,000 on a shared project. The company estimates there's a 15% chance it will get the larger contract and a 75% chance it will get the smaller contract; otherwise, it gets nothing. (a) Dene a random variable to model the outcome of the bid. (b) What is the expected prot earned on these contracts? Report units with your answer. (0) What is the standard deviation of the prots? (a) Choose the correct answer below. st. Let the random variable X denote the earned prots. Then p(0) = P(X = 0) = 0.10, p(10,000) = 0.75, p(40,000) = 0.15. B. Let the random variable X denote the type of contract. Then p(no contract) = P(X = no contract) = 0.10, p(sma|l contract) = 0.75, p(large contract) = 0.15. C. Let the random variable X denote the outcome of the bid. Then p(no) = P(X = no) = 0.10, p(yes) = 0.9. D. Let the random variable X denote the earned prots. Then p(0) = P(X = 0) = 0.10, p(10,000) = 0.15, p(40,000) = 0.75. (b) The expected prot is E