Asked by Jamal Abumonshar on Sep 29, 2024
The sample variance s2 is an unbiased estimator of the population variance σ2 when the denominator of s2 is n.
Population Variance
A measure of the spread or dispersion of a set of data points in a population, calculated as the average of the squared differences from the mean.
Sample Variance
The measure of variation within a sample dataset, indicating how spread out the sample points are from their sample mean.
Denominator
The bottom number in a fraction, representing the total number of equal parts the whole is divided into.
- Gain insight into the characteristics of unbiased and biased estimators.
- Gain insight into how variations in sample sizes influence the bias within estimators.
Learning Objectives
- Gain insight into the characteristics of unbiased and biased estimators.
- Gain insight into how variations in sample sizes influence the bias within estimators.
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