To calculate the average weights of the two rabbit breed groups, we first add up the weights for each breed and then divide by the number of rabbits. For Breed A, the total weight is 10 + 8 + 7 + 10 + 9 + 9 + 10 + 9 = 72 pounds, and dividing by 8 rabbits gives an average of 9 pounds. For Breed B, the total weight is 10 + 12 + 14 + 13 + 10 + 15 + 11 + 12 = 87 pounds, and dividing by 8 rabbits gives an average of 10.875 pounds.
Several factors could contribute to the different weights seen within breeds, such as genetics, diet, age, and overall health. Additionally, environmental factors like space for movement and stress levels can also affect weight. To track and find the growth rate of the two rabbit breeds during an investigation, I would measure the weight of each rabbit at regular intervals (e.g., weekly) over a set period and record these weights. This data would allow me to analyze patterns and calculate the growth rate for each breed based on their weight changes over time.