anonymous
  • anonymous
1/5 of the adult population in the U.S. smoked in 2005. Within part of the population that smoked, 6/25 of them were aged 25-44. What fraction of the adult population in the U.S. was aged 25-44 and smoked?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
P(A and B) = P(A) * P(B | A) Event A is an adult that smokes. Event B is an adult that is age 25 - 44. P(A) = P(smokes) = 1/5 = .2 P(B | A) = P(age 25 - 44 | smokes) = 6 / 25 = .24 P(smokes and age 25 - 44) = .2 * .24 = .048 = 4.8% = 6/125

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