Program for weighted mean of natural numbers . | Program to find weighted mean of first n natural numbers using formula . ; Returns weighted mean assuming for numbers { 1 , 2 , . . n } and weights { 1 , 2 , . . n } ; Driver program to test the function .
import java . io . * ; public class GFG { static int weightedMean ( int n ) { return ( 2 * n + 1 ) / 3 ; } static public void main ( String [ ] args ) { int n = 10 ; System . out . println ( weightedMean ( n ) ) ; } }