Use the graph to write the explicit rule of the arithmetic sequence.
Question 11 options:

A)

ƒ(n) = 7 + 3(n – 1)

B)

ƒ(n) = 7 + (–2)(n – 1)

C)

ƒ(n) = 2 + (–7)(n – 1)

D)

ƒ(n) = 3 + 1(n – 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?