| 释义 |
平均数 píng jūn shù
基本例句
averagemean valuenormmeantypical valueaverage numberaveragingaverage meanmean number繁体平均數矩，动差任意变量的正整数功效的期望值。第一个矩是分配的平均数The expected value of a positive integral power of a random variable. The first moment is the mean of the distribution.
4，6，8的平均数是6。The average of 4,6 and 8 is 6.
7、9和14的平均数是10。The mean of 7,9 and 14 is 10. |