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Probability and Conditional Probability

SAT Math· difficulty 3/5

A fair coin is flipped twice. What is the probability of getting two heads?

  • A

    1/41/4

    check_circle
  • B

    1/81/8

  • C

    1/21/2

  • D

    1/31/3

Explanation

Independent events: P(HH)=(1/2)×(1/2)=1/4P(HH) = (1/2) \times (1/2) = 1/4.

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