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I'm completely clueless about this probability question. Can anyone help shed some light?

Q) A building contractor has submitted bids for three jobs. If the contractor obtains the jobs, they will yield respective profits of £20000, £25000 and £40000. On the other hand, for each job that the contractor does not win, due to time and money already spent on making the bid he will incur a loss (interpreted as a negative profit) of £2,000. If the probabilities that the contractor will get these jobs are, respectively, 0.3, 0.6, and 0.2, what is the expected total profit?

Thanks in Advance

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