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The familiar multiple-regression equations are adapted to the problem of determining the probability of a future event from dichotomously classified predictors. The probability of an event can be computed rapidly by this method and can be used as a first approximation of what the subsequent weather will be. An example is included to illustrate how the method is used and to show a comparison between the computed probability values and the observed values.
Iver A. Lund (Thu,) studied this question.