U= {1, 2, 3, 4, 5, 6, 7, 8, 9}
A = {2, 3, 5, 7)
B = {1, 3, 5, 7, 9)
}
w
1. AUB = {
2. AnB = {
3. (AUB) C = {
4. An BC = {
}
}

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?