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?

Captain umaima has a ship, the h.m.s. khan. the ship is two furlongs from the dread pirate nadia and her merciless band of thieves. the captain has probability 3/7 of hitting the pirate ship. the pirate only has one good eye, so she hits the captain's ship with probability 2/5. if both fire their cannons at the same time, what is the probability that the captain hits the pirate ship, but the pirate misses.