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Refer to the contingency table shown below . Smoking by race for males aged 18 to 24 calculate the probability is given below smoking by race for males aged 18 to 24 white smoker 255 non-smoker 571 black 12 smoker non-smoker 162 calculate a probability is given below: P(S|B), P(S and W), P (N and B).

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Using it's concept, the probabilities are given as follows:

  • P(S|B) = 0.0690 = 6.90%.
  • P(S and W) = 0.255 = 25.5%.
  • P(N and B) = 0.162 = 16.2%.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

P(S|B) is the probability that a person is a smoker given that the person is black. Among 174 black people, 12 are smokers, hence the probability is given by:

P(S|B) = 12/174 = 0.0690 = 6.90%.

P(S and W) is the probability that a person is smoker and white. Among 1000 people, there are 255 white smokers, hence the probability is given by:

P(S and W) = 255/1000 = 0.255 = 25.5%.

P(N and B) is the probability that a person does not smoke and is black. Among 1000 people, there are 162 black non-smokers, hence the probability is given by:

P(N and B) = 162/1000 = 0.162 = 16.2%.

More can be learned about probabilities at https://brainly.com/question/14398287

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