(04.01) What are the possible rational zeros of f(x) = x4 + 6x3 - 3x2 + 17x - 15? (2 points)
O +1, 3, 5, + 15
1 1 1
+1, 3, 5, + 15
O +1, +3, + 6 + 15, + 17
1 1 1 1
+ 1, 3, + 6, £ 15, 17

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?