PROBLEM SOLVING 3. In the following diagram, QR is the image of NP after a
dilation centered at the origin with a scale factor of k. Which of
the following would not be a correct calculation of k.
Q
OR
(1)
QR
NP
(3)
OP
X
O
(2)
00
ON
(4)
00
ON

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?