To compute your scores, merely add or subtract your scores for each item.
要计算你的分数,只需加减一下你每项上的得分。
The Six Sigma Black Belt should be able to compute the mean and standard deviation from a grouped frequency distribution.
六西格玛黑带应该能够计算出一个分组发生频次分布数据的均值和标准偏差。