Importance

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Abstract

A data estimating system for estimating a value of the highest probability which would correspond to a desired factor by statistically processing data having been determined from a plurality of factors. The factors are roughly divided into basic factors and environmental factors, and each of which is further classified into predetermined grades. The basic factor is a factor which would most generally affect on the determination of the data value. A weighed average is calculated in each class of the basic and environmental factors to be subject to statistical processing. The weighed average of the basic factor is then corrected by the use of a ratio of the weighed average of the environmental factor to the weighed average of all data as a correcting index, so as to provide a final estimation value. Thus using the environmental factor as a correcting index would enable to provide a result with high accuracy of estimation by simple calculation process.

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