To find the average weight of the two rabbit breeds, I added up the weights and then divided by how many rabbits there are in each breed. For Breed A, the weights are 10, 8, 7, 10, 9, 9, 10, 9. When I add those up, I get 72, and since there are 8 rabbits, the average weight is 72 divided by 8, which equals 9 pounds. For Breed B, the weights are 10, 12, 14, 13, 10, 15, 11, 12. Adding those gives me 12, and when I divide that by 8, the average weight is 12.5 pounds.
Some factors that could affect the different weights of rabbits in the same breed include their age, diet, and health. For example, younger rabbits might weigh less than older ones, and if some rabbits eat better food, they might become heavier. To track and find the growth rate of the two breeds, I could weigh the rabbits every week and record their weights in a chart. This way, I could see how much weight they gain each week and find out which breed grows faster.