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The expected value of a random variable; or a location measure for a sample.

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I'm investigating using a trimmed mean to measure the location of various distributions. The distributions sometimes are heavily contaminated and sometimes not. Usually they follow something similar … to a log-normal or possibly mixed log-normal distribution, but often the data is "all over the place". I've looked at the mean, 5% trimmed mean, 10% trimmed mean and 20% trimmed mean. For each I …
asked Sep 8 '13 by Antonio2100