A researcher conducted an experiment on the growth rates of two species of plants, A and B, under varying conditions of sunlight and water. The data collected over four weeks is summarized in the following table:
Week | Species A Growth (cm) | Species B Growth (cm) |
---|---|---|
1 | 2 | 3 |
2 | 4 | 5 |
3 | 6 | 7 |
4 | 8 | 9 |
Using the data above, calculate the average growth rate of each species over the four weeks, and determine the ratio of the average growth rate of Species A to that of Species B.