| Tag | Value |
|---|---|
| file | Descriptive-statistics_uva-standard-deviation-339-en_uva-standard-deviation-339-en |
| name | uva-standard-deviation-339-en |
| section | Descriptive statistics/Summary Statistics/Measures of Spread/Standard Deviation |
| type | schoice |
| solution | FALSE, TRUE, FALSE, FALSE |
| Type | Calculation |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 4.514 |
| p-value | 0.0181 |
Suppose that in a certain population a variable has an expectation of 20 and a variance of 100. We now randomly draw a sample of 25 independent observations from this population. Then the standard deviation of the sample mean is equal to