A useful tool in comparing data values from populations with different means and standard deviations is z-score.
This is known to be a kind of numerical measurement that tells a value's association to the mean of a group of values.
The Z-score is said to be measured in regards to standard deviations that arises from the mean.
Note that A useful tool in comparing data values from populations with different means and standard deviations is z-score.
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