A clothing store posts advertisements via social media. The probability model describes the number of times the company may post in a day.

Social Media Posts 0 1 2 3 4 5
P(X) 0.05 0.1 0.35 0.25 0.2 0.05

How many posts would you expect the company to post each day?
3.4
3.05
2.6
2.45
2.1

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?