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  • Establishing the probability for which of two populations a new sample belongs

    Apologies for a very naive question. I have a population of some 10,000 observations and 10 variables. From the 10 variables I have derived a single (and meaningful) continuous metric. With missing values I am using multiple imputation to analyse the entire data set.

    In the set I have two well defined classes, say class A, with 7000 members, and class B with 2000 members. And I have the derived metric for each observation.

    I then have a population C of say 200 observations derived from the 1000 uncategorized observations for which the categorization into class A or B in unknown. I wish to estimate the probability that the population C is actually drawn from population A rather than population B (and v.v) based on the derived metric.

    What is an appropriate approach?
    Last edited by Jamie Hamilton; 11 Apr 2023, 10:45.
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