| Tag | Value |
|---|---|
| file | Descriptive-statistics_uva-variance-492-en_uva-variance-492-en |
| name | uva-variance-492-en |
| section | Descriptive statistics/Summary Statistics/Measures of Spread/Variance |
| type | schoice |
| solution | FALSE, FALSE, TRUE, FALSE |
| Type | Calculation |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 3.59 |
| p-value | 0.1877 |
Two independent stochastic variables X and Y are both normally distributed: X ~ N(70, 9²) and Y ~ N(88, 12²). Then the variance of Y - X equals