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| Definition: |
An estimator which involves the ratio of two variates, i.e. a ratio whose numerator and denominator are both subject to sampling errors. The term occurs particularly in sample survey theory.
If the members of a population each bear the values of two characteristics, x and y, and the total of x, say X, is known for the population, the corresponding total of y, say Y, can be estimated by multiplying X by a sample ratio consisting of the sample total of y divided by the total of x.
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Publication: |
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A Dictionary of Statistical Terms, 5th edition, prepared for the International Statistical Institute by F.H.C. Marriott. Published for the International Statistical Institute by Longman Scientific and Technical.
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| Statistical
Theme: Methodological information (metadata) |
| Created
on Sunday, May 26, 2002 |
| Last
updated on Monday, February 2, 2004 |
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