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Encyclopedia :: encyclopedia : Cumulative distribution function (Site not responding. Last check: 2007-10-03) |
 | | It is conventional to use a capital F for a cumulative distribution function, in contrast to the lower-case f used for probability density functions and probability mass functions. |
 | | Continuity of the distribution implies that P(X = a) = P(X = b) = 0, so the difference between "<" and "≤" ceases to be important in this context.) The function f is equal to the derivative of F almost everywhere, and it is called the probability density function of the distribution of X. |
 | | The Kolmogorov-Smirnov test is based on cumulative distribution functions and can be used to test to see whether two empirical distributions are different or whether an empirical distribution is different from an ideal distribution. |
| www.hallencyclopedia.com /Cumulative_distribution_function (543 words) |