#ifndef _STATISTICS_H_
#define _STATISTICS_H_
/* statistics.h,v 1.3 2000/06/04 22:00:03 brunsch Exp */

extern double   mean(const double, const int);
extern double   variance(const double, const double, const int);
extern double   stddev(const double, const double, const int);

#endif /* ! _STATISTICS_H_ */
