To find the range of the weights of the cats, you need to subtract the minimum weight from the maximum weight.
First, identify the maximum and minimum weights from the given data:
- Weights: 9, 8, 14, 7, 8, 10, 12, 11, 15, 18, 17, 10
- Minimum weight: 7
- Maximum weight: 18
Now, calculate the range:
Range = Maximum weight - Minimum weight
Range = 18 - 7 = 11
Therefore, the range of weights of the cats is 11 pounds.