The histogram to the right represents the weights (in pounds) of members of a certain high-school programming team. What is the class width? What are the approximate lower and upper class limits of the first class? 100 120 140 160 180 200 220 240 0 1 2 3 4 5 6 Weight (lbs) Frequency A histogram with horizontal axis labeled "Weight (pounds)" from 100 to 240 in intervals of 20 and vertical axis labeled "Frequency" from 0 to 6 in intervals of 1 contains seven adjacent vertical bars with heights as follows: 100 to 120, 4; 120 to 140, 1; 140 to 160, 1; 160 to 180, 3; 180 to 200, 3; 200 to 220, 4; 220 to 240, 2. What is the class width? The class width is nothing. (Simplify your answer.) What are the approximate lower and upper class limits of the first class? The approximate lower class limit is nothing. The approximate upper class limit is nothing. (Simplify your answers.)