What is the probability that consolidated builders will win


Consolidated Builders has bids on two large construction projects. The company president believes that

  • the probability of winning the first contract (event A) is 0.47
  • the probability of winning the second contract (event B) is 0.37
  • the probability of winning both contracts (event {A and B}) is 0.21

What is the probability that Consolidated Builders will win at least one of the jobs? That is, what is P(A or B)?

Express your answer in decimal form to 3 decimal places.

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