1. Skewness and Kurtosis

2. 1

5. Y Z
freq
%freq 1
-1.68 10
0.1 2
-1.08 20
0.2 3
-0.48 4
0.12 5
0.72 6
1.32
Total
100
1.0 Y Z
%freq 1
-1.46
1/6 2
-0.88 3
-0.29 4
0.29 5
0.88 6
1.46
Total
1.0

6. Credit Card data : Z = ( X – 2.89 )/1.49
X Z freq
Low Spender (1-2.89)/
Med Low Spender 2 (2-2.89)/
Average Spender (3-2.89)/
Med High Spender (4-2.89)/
High Spender (5-2.89)/
Total

7. 歪 - +

8. 歪

9. 歪

10. 歪

11. 尖 +

12. 尖

13. Y Z Z3 Z4
freq
%freq 1
-1.68
-4.71
7.90 10
0.1 2
-1.08
-1.25
1.35 20
0.2 3
-0.48
-0.11
0.05 4
0.12 5
0.72
0.37
0.27 6
1.32
2.29
3.01
Total
100
1.0

14. Y Z Z3 Z4
%freq 1
-1.46
-3.14
4.59
1/6 2
-0.88
-0.68
0.59 3
-0.29
-0.03
0.01 4
0.29
0.03 5
0.88
0.68 6
1.46
3.14
Total
1.0

15. Credit card data: Z = ( X – 2.89 )/1.49
freq
%freq 1
-1.27
-2.04
2.59 26
0.26 2
-0.60
-0.21
0.13 20
0.20 3
0.07 11
0.11 4
0.74
0.41
0.31 25
0.25 5
1.42
2.84
4.02 18
0.18
Total
100
1.0

16. For population 2 4 6 8

17. Exercise: find mean, variance, skewness, kurtosis
For population 2 4 6 8 2 6 2 4 6 8
Exercise: find mean, variance, skewness, kurtosis

18. Thank you !!