3. T-distribution
Distribution that involves a small population or one where you don't know much about it.
It is used to estimate the mean of the population and other statistics such as confidence intervals, statistical differences and linear regression.
The T-distribution uses a t-score to evaluate data that wouldn't be appropriate for a normal distribution.
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The probability of an event based on data from a small group within a large population. Its primary purpose is to establish representative results of small samples of a comparatively larger population.
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