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In functional analysis, this noun denotes linear functionals that act on compactly-supported test functions, which define a namesake generalized derivative. Methods (10[1])that are “[this noun]-free” are also called “nonparametric” and include the Kolmogorov–Smirnov test. A letter that stands for this noun appears above the arrow in the central limit theorem, which concerns “convergence in [this word].” This noun appears in the name of a class of increasing, right-continuous functions that converge to zero and one at minus and plus infinity. Those functions, which are found by integrating probability density functions, are written capital F and preface this noun with “cumulative.” For 10 points, give this word (10[1])for the spread of probabilities (10[1])taken by a random variable, (10[1])such as the Poisson (-5[1])or binomial. (10[1])■END■ (10[1])

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