Examlex
Name and briefly describe four of the most popular commercial software tools used for text mining.
Test Statistic
A value calculated from sample data that is used to test a hypothesis in statistics.
Normal
A type of statistical distribution where data is symmetrically distributed around the mean, known as the Gaussian distribution.
Confidence Interval
A range of values derived from sample statistics that is likely to contain the value of an unknown population parameter, with a specified level of confidence.
Population Proportion
The fraction or percentage of a population that exhibits a particular trait or characteristic.
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