雅虎香港 搜尋

搜尋結果

  1. Yahoo字典

    noun

    • 1. a test for statistical significance that uses tables of a statistical distribution called Student's t -distribution, which is that of a fraction (t) whose numerator is drawn from a normal distribution with a mean of zero, and whose denominator is the root mean square of k terms drawn from the same normal distribution (where k is the number of degrees of freedom).

    Powered by New Oxford American Dictionary

    看更多