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Table 2 AU data values of respondents

From: Differences in emotional expression among college students: a study on integrating psychometric methods and algorithm optimization

Respondents

AU1

AU2

AU3

AU4

AU5

AU6

AU7

AU8

First grade engineering male

3.5

4

2.8

3.1

4.5

3.7

2.7

3.1

First grade engineering female

3.6

4.3

2.9

3.2

4.6

4

2.8

3.5

First grade liberal arts male

3.7

4.2

3

3.4

4.6

3.8

2.9

3.3

First grade liberal arts female

3.8

4.5

3.2

3.6

4.7

4.2

3.2

3.6

Second grade engineering male

3.6

4.1

2.9

3.3

4.4

3.8

2.6

3.2

Second grade engineering female

3.7

4.4

2.9

3.5

4.5

4.1

2.7

3.7

Second grade liberal arts male

3.6

4.2

3.1

3.6

4.7

4

2.8

3.4

Second grade liberal arts female

3.9

4.5

3.2

3.8

4.8

4.3

2.9

3.8

Third grade engineering male

3.7

4.1

3

3.5

4.5

4.1

2.8

3.3

Third grade engineering female

3.9

4.4

3.2

3.8

4.6

4.2

3

3.6

Third grade liberal arts male

3.8

4.3

3.1

3.6

4.6

4.2

3.2

3.5

Third grade liberal arts female

3.9

4.4

3.2

3.8

4.7

4.3

3.6

3.7

Fourth grade engineering male

3.4

4.1

2.8

3.3

4.4

3.9

2.7

3.4

Fourth grade engineering female

3.8

4.2

2.9

3.5

4.5

4.1

2.8

3.6

Fourth grade liberal arts male

3.6

4.4

3.2

3.7

4.5

4.2

3.2

3.5

Fourth grade liberal arts female

3.7

4.5

3.3

3.8

4.7

4.4

3.4

3.8