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The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 21 who smoke. Step 1 of 2 : Suppose a sample of 292 Americans over 21 is drawn. Of these people, 225 don't smoke. Using the data, estimate the proportion of Americans over 21 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places

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MechEngineer

Answer:

[tex]\frac{67}{292} = 0.229[/tex]

Step-by-step explanation:

Out of 292 drawn Americans over 21, 225 of them don't smoke. That means the rest of them are smokers:

So there are 292 - 225 = 67 smokers here.

We can then calculate the portion of Americans over 21 who smoke:

[tex]\frac{67}{292} = 0.229[/tex]

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