| No | Description | Difficulty | Syllabus | Level | |
|---|---|---|---|---|---|
| 1 | Given decimal table & E(X), find Var(X); NI | Easy | A-level | S1 | Related material |
| 2 | Given decimal table & E(X^2), find Var(X); NI | Easy | A-level | S1 | Related material |
| 3 | Given decimal table, find Var(X); NI | Intermediate | A-level | S1 | Related material |