Problem 160. So many choices
For inputs n and k (in that order), output the number of ways that k objects can be chosen from amongst n distinct objects. [The order of the selected objects is irrelevant.]
For example, suppose you have 4 blocks: red, green, blue, yellow. How many ways are there to select 2 of them? There are 6 ways: RG, RB, RY, GB, GY, BY. [Remember the ordering is irrelevant, so GR is equivalent to RG, and therefore does not count as a distinct choice.]
So, function(4,2) ---> 6.
Solution Stats
Problem Comments
-
3 Comments
Why in my pc showing correct but not in this
@Sumit, you are probably using a function from a toolbox (e.g. statistics toolbox) that is not available to Cody.
http://onlinestatbook.com/2/probability/permutations.html
Solution Comments
Show commentsProblem Recent Solvers444
Suggested Problems
-
227 Solvers
-
615 Solvers
-
1509 Solvers
-
Sum the numbers on the main diagonal
574 Solvers
-
416 Solvers
More from this Author23
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!