| 释义 |
standardize To transform a random variable so that it has a mean of zero and variance of 1. If E(X) = μ and Var(X) = σ2 the standardized variable Z will have E(X) = 0 and Var(X) = 1. The most common application of this is in the normal distribution where probabilities for X ∼ N(μ, σ2) are evaluated using the N(0, 1) tables, applying the transformation
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