Probability and Conditional Probability

SAT Math· difficulty 3/5

Using the data from problem 14, what is the probability that a randomly chosen woman prefers coffee?

  • A

    70/12070/120

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  • B

    70/20070/200

  • C

    70/10070/100

  • D

    120/200120/200

Explanation

Conditional: P(coffeewoman)=70/120P(\text{coffee} | \text{woman}) = 70/120 since we restrict to women.

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