| 单词 | Student's t |
| 释义 | Word Frequency Student's tnoun a statistic often used to test the hypothesis that a random sample of normally distributed observations has a given mean, μ; given by t = (̄x–μ) √n/s where ̄x is the mean of the sample, s is its standard deviation, and n is the size of the sample Word origin after Student, the pen name of W. S. Gosset (1876–1937), English statistician and research scientist |
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