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Of the 154 patients that visited Doctor McClary's office this week, 37 described themselves as former smokers (F) and 14 described themselves as current smokers (C)

Of the 154 patients that visited Doctor McClary's office this week, 37 described themselves-example-1

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Answer:

37 + 14 = 51 patients were either current or former smokers.

P(current or former smoker) = 51/154

= .331

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