To find the average weight of the rabbits, we add up all their weights and then divide by how many rabbits there are. For Breed A, the weights are 10, 8, 7, 10, 9, 9, 10, and 9. If we add those up, we get 72, and with 8 rabbits, the average is 72 divided by 8, which equals 9 pounds. For Breed B, the weights are 10, 12, 14, 13, 10, 15, 11, and 12. Adding those gives us 97, and with 8 rabbits, the average is 97 divided by 8, which equals about 12.13 pounds.
The different weights could happen because some rabbits are bigger by nature (breeding), and also what they eat can make a difference. To track how much the rabbits are growing, I would weigh them every week and keep a record. This way, I can see how much heavier they get over time!