Refer to the contingency table shown below.
(a) Calculate each probability (i­vi) 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?
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 Row Total 850 150 1,000 White (W) Black (B) 290 30 320 560 120 680 Column Total