Question 12 The incidence of cholera is 23 per 1,000 in a population that consists of well water drinkers and city water drinkers, If the incidence of cholera is 2 per 1,000 for city water drinkers,...

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Extracted text: Question 12 The incidence of cholera is 23 per 1,000 in a population that consists of well water drinkers and city water drinkers, If the incidence of cholera is 2 per 1,000 for city water drinkers, how much of the risk for cholera is attributed to well water drinking? O 21 25 O 2300 0 2