Tag | Value |
---|---|
file | Descriptive-statistics_uva-variance-218-en_uva-variance-218-en |
name | uva-variance-218-en |
section | Descriptive statistics/Summary Statistics/Measures of Spread/Variance |
type | schoice |
solution | TRUE, FALSE, FALSE |
Type | Calculation |
Language | English |
Level | Statistical Literacy |
IRT-Difficulty | 4.02 |
p-value | 0.1114 |
Given is the following table
———- —– —– —– —– X 1 2 3 4 P(X = x) 0.2 0.3 0.3 0.2 ———- —– —– —– —–
The variance of the probability variable X, Var(X), is