public interface  oadd.org.apache.commons.math.distribution.PoissonDistribution extends java.lang.Object implements oadd.org.apache.commons.math.distribution.IntegerDistribution
{
public abstract double getMean();
public abstract void setMean(double);
public abstract double normalApproximateProbability(int) throws oadd.org.apache.commons.math.MathException;
}