Statistics › Section H · Confidence intervals › Topic H.1
Point estimates and good estimators
A point estimate is a single best guess for a population number. This topic builds the vocabulary of estimation - estimators, estimates, and the properties that make some guesses better than others - and shows why no point should ever travel alone.
In this topic
- From sample to single best guess
- Estimators and estimates
- Unbiasedness
- Efficiency
- Consistency
- Maximum likelihood, in brief
- Worked example: battery lifetimes
- Worked example: a poll's point and its wobble
- Common mistakes to avoid
- Key takeaways
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