Lesson plan
Frequency (statistics)
In statistics, the frequency or absolute frequency of an event i is the number n_i of times the observation has occurred or been recorded in an experiment or study. The relative frequency is the ratio of absolute frequency to the sample size. The cumulative frequency is the total of the absolute frequencies of all events at or below a certain point in an ordered list of events. These frequencies are often depicted graphically or in tabular form. They may be used as estimators of empirical probabilities or cumulative distribution functions, for instance.
Article summary
In statistics, the frequency or absolute frequency of an event i is the number n_i of times the observation has occurred or been recorded in an experiment or study. The relative frequency is the ratio of absolute frequency to the sample size. The cumulative frequency is the total of the absolute frequencies of all events at or below a certain point in an ordered list of events. These frequencies are often depicted graphically or in tabular form. They may be used as estimators of empirical probabilities or cumulative distribution functions, for instance.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.