1.
Why do social scientists use quantitative variables such
as age at first marriage, age of a woman at birth of her first child as
development indicators of a society?
2.
Why do doctors use quantitative variables like blood
pressure, total cholesterol and blood sugar as "well being indicators"
of an individual?
3.
Why do engineers use quantitative variables like
breaking strength of cables as one of the indicators of quality of cables
produced by a particular engineering design?
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