# Calculate each probability for smoking by race for males

Refer to the contingency table shown below. (a) Calculate each probability (i-vi) and explain in

words what it means. (b) Do you see evidence that smoking and race are not independent?

Explain. (c) Do the smoking rates shown here correspond to your experience? (d) Why might

public health officials be interested in this type of data? (Data are from Statistical Abstract of the

United States, 2001, pp. 12 and 16. Note: Actual statistics are applied to a hypothetical sample of

1,000.) Smoking2

i. P(S) ii. P(W) iii. P(S | W)

iv. P(S | B) v. P(S and W) vi. P(N and B)

Smoking by Race for Males Aged 18-24

Smoker Nonsmoker

(S) (N) Row Total

White (W) 290 560 850

Black (B) 30 120 150

Column Total 320 680 1,000

https://brainmass.com/statistics/probability/calculate-each-probability-213173

#### Solution Preview

Calculate each probability

Refer to the contingency table shown below.

(a) Calculate each probability (i-vi) and explain in words what it means.

(b) Do you see evidence that smoking and race are

not independent? Explain.

(c) Do the smoking rates shown here correspond to your

experience?

(d) Why might public health officials be interested in this type of data? (Data are from Statistical Abstract of the United States, 2001, pp. 12 and 16. Note: Actual statistics are applied to a hypothetical sample of 1,000.)

Smoking2

i. P(S) ii. P(W) iii. P(S | W)

iv. P(S | B) v. P(S and W) vi. P(N and B)

Smoking by Race for Males Aged 18-24

Smoker Nonsmoker

(S) ...

#### Solution Summary

The solution calculates each probability for smoking by race for males.