Suppose the estimated duration of a task is 3 months, and the variance of the estimate is 1 month.
假设估算的任务持续时间是 3 个月，并且估计的方差是 1 个月。
2
Statistical methods for combining the results of studies generally weight the influence of each study by the inverse of the variance for the estimated measure of effect.
合并研究结果的统计学方法通常采用待估效应测量值的方差的倒数来对每一个研究的影响进行加权。
3
Variance components estimated by MINQUE method can be used in significance test for linear contrasts of variety effects.