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Probability and Conditional Probability

SAT Math· difficulty 4/5

Events AA and BB are independent if:

  • A

    P(A and B)=P(A)⋅P(B)P(A \text{ and } B) = P(A) \cdot P(B)

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  • B

    P(A)=P(B)P(A) = P(B)

  • C

    P(A∣B)=0P(A | B) = 0

  • D

    P(A and B)=P(A)+P(B)P(A \text{ and } B) = P(A) + P(B)

Explanation

For independent events, P(A and B)=P(A)⋅P(B)P(A \text{ and } B) = P(A) \cdot P(B).

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