Howtosignalprocessing
How to calculate a sum?
Summation (or) sum is the sum of consecutive terms of a sequence. To write the sum of more terms, say n terms, of a sequence an , we use the summation notation instead of writing the whole sum manually. i.e., a1+a2+... +an=∑ni=1ai.
How do you find the sum of data?
A "sum" is the sum of all the data (the observations) in a dataset. Once again, we're using very simple math here. Just add up all the numbers below from a dataset of childhood weights (you can use a calculator if you prefer).
