A form of standardised score on a test which is obtained by expressing the raw score (actual score) in terms of the relationship of that score to the mean or average score. The difference is expressed in units of the standard deviation. For example, a...

A measure of the overall performance of a company which takes the form of a weighted index. The index is a+b×profitability −c×gearing. In this expression, a is a constant and b and c are coefficients reflecting the relative importance...

In statistics, the standard score, also called the z-score or normal score, is a dimensionless quantity derived by subtracting the population mean from an individual raw score and then dividing the difference by the population standard deviation. This...