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To find the percentage of students who have dogs as pets, we divide the number of students with dogs (10) by the total number of students (10 + 8 + 2 + 3 = 23), then multiply by 100:
(10 / 23) * 100 = 43.5%
To find the percentage of students who have hamsters as pets, we divide the number of students with hamsters (3) by the total number of students (23), then multiply by 100:
(3 / 23) * 100 = 13.0%
The difference in percentage of students who have dogs as pets and students who have hamsters as pets is:
43.5% - 13.0% = 30.5%
Therefore, the difference in percentage is 30.5%.