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Question

P(A) = 0.50, P(B) = 0.40, and P(A and B) = 0.15. What is P(A or B)?

Answer

0.75

  • Q: What is the formula for P(A or B)? A: P(A or B) = P(A) + P(B) - P(A and B)
  • A: P(A or B) = 0.50 + 0.40 - 0.15
  • A: P(A or B) = 0.75