What would the mean values be? (the green boxes)​

First Mean = 5

Second Mean = 3

Third Mean = 6

Fourth Mean = 9

Explanation:

For each column you just add up the data numbers and divide them by how many numbers is in that column which would be 3.

0.5 + 14.0 + 0.5 = 15 | 15 / 3 = 5

2.5 + 4.0 + 2.5 = 9    | 9 / 3 = 3

6.0 + 7.0 + 5.0 = 18   | 18 / 3 = 6

8.0 + 10.0 + 9.0 = 27 | 27 / 3 = 9

"a.) well–developed vascular system."