How to Calculate the Number of Combinations
A "combination" is an unordered series of distinct elements. An ordered series of distinct elements is referred to as a "permutation." A salad may contain lettuce, tomatoes and olives. It does not matter what order it is in; you can say lettuce, olives...

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Difficulty:
Easy

Source:
www.ehow.com

en.wikipedia.org/wiki/Combination

In mathematics, a combination is a way of selecting items from a collection, such
that (unlike permutations) the order of selection does not matter. In smaller cases
it is possible to count the numb...

stattrek.com/online-calculator/combinations-permutations.aspx

Find the number of combinations and/or permutations that result when you
choose r elements from a set of n elements. For help in using the calculator, read
the ...

keisan.casio.com/exec/system/1223621784

Calculates the number of combinations of n things taken r at a time.

www.mathsisfun.com/combinatorics/combinations-permutations-calculator.html

Combinations and Permutations Calculator ... Number Chosen? ... The number
says how many (minimum) from the list are needed for that result to be allowed.

planetcalc.com/3757/

This calculator which generates possible combinations of m elements from the
set of element with size n. Number of possible combinations, as shown in ...

www.calculatorsoup.com/calculators/discretemathematics/combinations.php

Find the number of ways of choosing r unordered outcomes from n possibilities
as nCr (or nCk). Combinations calculator or binomial coefficient calcator and ...

www.webmath.com/k8perm.html

Say you have a certain number of things or objects. They can be numbers, letters,
people, colors, etc. In how many different ways can these things be arranged ...

www.statisticshowto.com/calculators/permutation-calculator-and-combination-calculator/

Oct 31, 2016 ... Free online combinations calculator and permutations calculator for ... And we
input the number 5 for n, and 3 for r, and so we know that there ...

www.free-online-calculator-use.com/combination-calculator.html

Instantly find all possible combinations of up to 6 numbers, letters, or a
combination of both, sorted in your preferred order.