Final answer:
The difference in weight between the heaviest and lightest hamster is 7 ounces. So, the correct option is A.
Step-by-step explanation:
The line plot shows the weights of 10 hamsters. To find the difference in weight between the heaviest and lightest hamsters, we need to determine the range. The range is the difference between the largest and smallest weights. By looking at the line plot, we can see that the largest weight is 10 ounces and the smallest weight is 3 ounces. Therefore, the difference in weight between the heaviest and lightest hamster is 10 - 3 = 7 ounces.
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