Independent Events and Unions of Events

AP Statistics· difficulty 3/5

Events A and B are independent with P(A) = 0.4 and P(B) = 0.5.

A: 0.4 B: 0.5 A and B independent

What is P(A and B)?

  • A

    0.10

  • B

    0.45

  • C

    0.90

  • D

    0.20

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Explanation

For independent events: P(A and B) = P(A) * P(B) = 0.4 * 0.5 = 0.20.

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