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It is decided to question the first 200 students passing through the main entrance of the university after a specified time. The students are asked

It is decided to question the first 200 students passing through the main entrance of the university after a specified time. The students are asked whether they use the library regularly and also to state which department they belong to. The results are shown below, further classified according to the sex of the respondent.

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Department Regular User Non-Regular Users Male Female Male Female Mathematics 18 7 20 5 Computer 29 13 20 8 Science Physics 8 13 8 6 Chemistry 10 2 22 11

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