The relationship between the diameter of the tree trunk snd the height of the tree is as the diameter increases the tree will get taller therefor the height will increase too. As you can see on the scatter graph the points are going in a upwards slant meaning its increasing.
You dived 4,005/16
then you will get your answer
The answer is Cu = X times 2.5
Haha I know this totally unhelpful but I do connections academy too. What quiz/test are you on