# What is the average; the sum of the elements divided by the number of elemrnts?

The average of a set of numbers is the sum of the numbers divided by how many numbers there are. This is also called the mean. For eample in order to find the average of 3, 4 and 5 you would add 3+4+5=12 then divide 12/3 (there are 3 numbers) which equals 4. So the average or mean of 3, 4 and 5 is 4.
Q&A Related to "What is the average; the sum of the elements..."
 Yes, average is the sum of elements divided by the number of elements. Exp:- x1=10, x2=20, x3=30, x4=10. then the average is 10+20+30+10.------------------. 4. => 17.5. Average http://wiki.answers.com/Q/What_the_average_the_sum...
 Maybe this could be useful # Creating your array, I know this is an ugly way to do it :D Array <- array(rep(NA, 16*3), dim=c(4,4,3)) Array[2,1,1] <- 0.5 Array[2:3,1,2] <- http://stackoverflow.com/questions/11608900/multi-...
 If I'm not totally mistaken, one could calculate the avg(n+1) also this way: avg(n+1) = (a[1]+ ... + a[n+1]) / (n+1) = = (a[1]+ ... + a[n])/(n+1) + a[n+1]/(n+1) = = (n(a[1]+ ... + http://stackoverflow.com/questions/2956098/averagi...