= 164÷4

=4 1 (person);

A: The average number of Internet users in each class this weekend was 4 1.

(2) According to statistics, Class 3 (4) has the largest number of Internet surfers this weekend, and Class 3 (1) has the smallest number of Internet surfers.

47-34= 13;

Answer: The maximum number is more than the minimum number 13.

(3) Three (2) How many people are online than three (3)?

45-38=7 (person);

A: Three (2) people are 7 less than three (3) people.