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Acording to the national center for health statistics 224

According to the National Center for Health Statistics, 22.4 % of adults are smokers. A random sample of 300 adults is obtained.

A. Does this represent a normal distribution?

B. In a random sample of 300 adults, what's the probability that at least 50 are smokers?

C. Would it be unusual if a random sample of 300 adults results in 18% or less being smokers?

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Basic Statistics: Acording to the national center for health statistics 224

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