Question

Average height of a species of tree (in feet) after a certain number of years

Years----------Height
1 ------------- 2.1
2 ------------- 3.2
3 ------------- 6.8
4 ------------- 7.3
5 ------------- 11.2
6 ------------- 12.6
7 ------------- 13.4
8 ------------- 15.9

What is the correlation coefficient for the set of data? Round your answer to the nearest thousandth.

a. 0.014
b. 0.989
c. 0.075
d. -0.977***

About how tall do you expect one of these trees to be after 22 years?

a. 22.31 ft
b. 35.2 ft
c. 44.25 ft
d. 46.2 ft

Answer 1

b then c

Answer 2

these are right for 2020