Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
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) or https:// means you've safely
connected to the .gov website. Share sensitive
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Balanced incomplete block designs (BIBDs) ― 13 choices & four options’ case.
| Choice set no. | Item no. | |||
|---|---|---|---|---|
| 1 | 1 | 2 | 4 | 10 |
| 2 | 2 | 3 | 5 | 11 |
| 3 | 3 | 4 | 6 | 12 |
| 4 | 4 | 5 | 7 | 13 |
| 5 | 1 | 5 | 6 | 8 |
| 6 | 2 | 6 | 7 | 9 |
| 7 | 3 | 7 | 8 | 10 |
| 8 | 4 | 8 | 9 | 11 |
| 9 | 5 | 9 | 10 | 12 |
| 10 | 6 | 10 | 11 | 13 |
| 11 | 1 | 7 | 11 | 12 |
| 12 | 2 | 8 | 12 | 13 |
| 13 | 1 | 3 | 9 | 13 |
