A study was done of 21,870 male physicians aged 40 to 84.In the study, the doctors were asked about their alcohol consumption and whether they smoked (now or in the past).The table below looks at the relationship between smoking and alcohol consumption.The categories were:

Drinks Per Week:less than 1; 1 a week; 2 to 4; 5 to 6; Daily

Smoking: Never; Former; Current

Drinks per Week Smoking less than I 1 a week 2 to 4 5 to 6 Daily Total Never 3.57 7 1. 71 1 2. 430 1, 21 1 1. 910 10. 830 Former 1. 595 1. 068 1. 990 1. 264 2. 683 8. 609 Current 524 289 ATD 296 8: 49 2, 428 Total 5, 696 3, 068 4, 895 2, 7 71 5, 442 21, 876