| Tag | Value |
|---|---|
| file | Descriptive-statistics_uva-variance-210-en_uva-variance-210-en |
| name | uva-variance-210-en |
| section | Descriptive statistics/Summary Statistics/Measures of Spread/Variance |
| type | schoice |
| solution | FALSE, FALSE, TRUE |
| Type | Calculation |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 3.988 |
| p-value | 0.1264 |
For the probability variable X, Var(X) = 3. A new probability variable W is created using the formula W = 2X. The variance of W, Var(W), is now