Probability and Conditional Probability

SAT Math· difficulty 3/5

Using the data from problem 56, what is the probability that a daily exerciser is a man?

  • A

    80/15080/150

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  • B

    80/14080/140

  • C

    80/25080/250

  • D

    70/15070/150

Explanation

Total daily exercisers = 80+70=15080 + 70 = 150. P(mandaily)=80/150P(\text{man} | \text{daily}) = 80/150.

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