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math-Probability

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In a certain manufacturing process the probability of a type I defect is 0.21, the probability of a type II defect is 0.31, and the probability of having both types of defects is 0.01. Find the probability of having neither type of defect.

  • math-Probability -

    Hint:
    Use P(A∪B)=P(A)+P(B)-P(A∩B)
    and probability of having no defect is
    1-P(A∪B).

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