[1] root
| [2] Certification in N: N (n = 133015, err = 0.1%)
| [3] Certification in Y
| | [4] MCITP in N
| | | [5] DMS in N
| | | | [6] PRINCE in N
| | | | | [7] Lotus_Notes in N
| | | | | | [8] Kwun_Tong in N: N (n = 4785, err = 0.8%)
| | | | | | [9] Kwun_Tong in Y
| | | | | | | [10] Java in N: N (n = 589, err = 2.7%)
| | | | | | | [11] Java in Y
| | | | | | | | [12] Higher_Diploma in Y: N (n = 21, err = 0.0%)
| | | | | | | | [13] Higher_Diploma in N
| | | | | | | | | [14] Degree in Y: N (n = 17, err = 11.8%)
| | | | | | | | | [15] Degree in N: Y (n = 17, err = 17.6%)
| | | | | [16] Lotus_Notes in Y
| | | | | | [17] Outlook in N: N (n = 157, err = 6.4%)
| | | | | | [18] Outlook in Y: Y (n = 12, err = 25.0%)
| | | | [19] PRINCE in Y
| | | | | [20] Excel in N: N (n = 43, err = 7.0%)
| | | | | [21] Excel in Y: Y (n = 8, err = 12.5%)
| | | [22] DMS in Y: Y (n = 12, err = 25.0%)
| | [23] MCITP in Y
| | | [24] English in Y
| | | | [25] ecommerce in N: N (n = 123, err = 0.8%)
| | | | [26] ecommerce in Y: Y (n = 7, err = 28.6%)
| | | [27] English in N
| | | | [28] MCSE in N: N (n = 41, err = 2.4%)
| | | | [29] MCSE in Y
| | | | | [30] Higher_Diploma in N: N (n = 8, err = 25.0%)
| | | | | [31] Higher_Diploma in Y: Y (n = 33, err = 0.0%)
Number of inner nodes: 15
Number of terminal nodes: 16
Created by Mr. Cyrus Wong, Data Scientist.
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