| Tag | Value |
|---|---|
| file | Descriptive-statistics_uva-variance-417-en_uva-variance-417-en |
| name | uva-variance-417-en |
| section | Descriptive statistics/Summary Statistics/Measures of Spread/Variance |
| type | schoice |
| solution | FALSE, FALSE, FALSE, TRUE |
| Type | Calculation |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 3.551 |
| p-value | 0.1949 |
Suppose y is a stochastic variable that indicates my winnings at a certain casino game with a bet of 25 guilders. The expectation of y is -2 and the standard deviation is 6. When I increase my wager to 100 guilders, and denote my profit variable by z, then the variance of z is equal to