1. In a Public Health Survey, a histogram was plotted showing the number of cigarettes per day smoked by each subject (current male smokers), as shown below. The density is marked in parentheses. The class intervals include the right endpoint, not the left. (a) Is the percentage who smoked between 10 and 80 cigarettes or less per day around 5.5%, 55%, 85%, or 98.5%? (b) In which interval are there more smokers: 010 cigarettes or 4080 cigarettes? (c) Which interval is more crowded: 010 cigarettes or 4080 cigarettes? (d) On the interval 2040 cigarettes, the height of the histogram is about 1.5% per cigarette. What percentage of the men had daily cigarette use in this class interval? 4 (3.5) 3 % per 2 cigarette (1.5) (1.5) 1 (0.5) 0 0 10 20 40 80 Number of cigarettes