To start off you just need to know whether repetition is allowed in your problem or not and then pick your method and formula accordingly. Here are the steps to follow when using this combination formula calculator. On the left side enter the values for the Number of Objects n and the Sample Size r.
Type at least n names separated by commas then List.
Calculator Use The Combinations Calculator will find the number of possible combinations that can be obtained by taking a sample of items from a larger set. Enter 30 for Number of sample points in set. Enter 4 for Number of sample points in each combination. Pick one of the four numbers there are four choices in this step.
