| Tag | Value |
|---|---|
| file | Descriptive-statistics_uva-variance-323-en_uva-variance-323-en |
| name | uva-variance-323-en |
| section | Descriptive statistics/Summary Statistics/Measures of Spread/Variance |
| type | schoice |
| solution | FALSE, TRUE, FALSE, FALSE |
| Type | Calculation |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 3.716 |
| p-value | 0.1702 |
From a normally distributed population, a sample of size 25 is drawn. The mean of the sample is 13 and the standard deviation 4.2. The variance of the sample mean is equal to