Table 1 The results of the statistical analysis of the parents and the whole population

4.46

5.18

0.71

3.92

5.91

1.99

4.71

0.41

0.17

0.38

0.05

4.49

5.74

1.24

3.50

6.20

2.70

4.78

0.47

0.22

0.06

0.42

4.40

5.72

1.32

3.97

6.29

2.32

4.91

0.47

0.22

0.35

−0.16

3.85

4.77

0.92

3.20

5.50

2.30

4.32

0.47

0.22

0.03

−0.56

3.56

4.65

1.09

2.99

5.40

2.41

4.15

0.44

0.19

0.14

−0.02

2.93

4.44

1.51

2.13

5.16

3.03

3.41

0.55

0.30

0.14

−0.39

5.20

5.40

0.20

3.73

6.94

3.21

5.17

0.57

0.32

0.15

0.24

3.20

3.79

0.59

1.78

4.65

2.87

3.40

0.48

0.23

−0.16

−0.04

4.20

5.44

1.24

3.32

5.83

2.51

4.61

0.48

0.23

0.09

−0.17

3.71

5.98

2.27

2.38

5.86

3.48

3.94

0.57

0.33

0.06

0.45

5.13

5.62

0.49

2.76

6.26

3.50

4.70

0.55

0.30

−0.24

0.86