Collectors recycled 25.84 pounds of cans and bottles and the Savers recycled 21.37 pounds of cans and bottles. During the second week, the Collectors recycled 15.95 pounds of cans and bottles and the Savers recycled 20.63 pounds of cans and bottles. The Savers won the challenge. How many more pounds of cans and bottles did the Savers recycle than the Collectors?

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?