?? distribution.java
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package sim;/** * Defines a set of methods a distribution (of values) must provide. */public interface Distribution { /** * Returns the next value. * @return the next value. */ public double getValue(); /** * Returns the distribution's expected value. * @return the distribution's expected value. */ public double getExpectedValue(); /** * Returns the distribution's variance. * @return the distribution's variance. */ public double getVariance();}
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