Question: Successful bids. Consolidated Builders has bid on two large construction projects. The company president believes that the probability of winning the first contract (event A)

Successful bids. Consolidated Builders has bid on two large construction projects. The company president believes that the probability of winning the first contract (event A) is 0.6, that the probability of winning the second (event B) is 0.5, and that the probability of winning both jobs (event {A and B})

is 0.3. What is the probability of the event {A or B} that Consolidated will win at least one of the jobs?

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