Age

Num.

Mean

Std. Deviations

Gender

Boy

8

50

30.42

3.23

9

50

30.82

2.53

10

50

30.98

2.88

Total

150

30.74

2.88

Girl

8

50

29.32

3.33

9

50

30.34

2.77

10

50

29.66

2.75

Total

150

29.77

2.97

Age

Boy & Girl

8

100

29.87

3.308

9

100

30.58

2.648

10

100

30.32

2.881

Total

300

30.26

2.96