5C3 or 5 choose 3
Combinations example: choose 3 items from a list of 5 using the combinations formula.
Combinations - Counting Using Combinations
Probability using combinations | Probability and Statistics | Khan Academy
Combination formula | Probability and combinatorics | Probability and Statistics | Khan Academy
Permutations and Combinations - word problems 128-1.11
Probability - Combinations - Using The nCr Equation
Math Skills: How to find Factorial, Permutation and Combination (Choose)
Shortcuts for Permutation & Combinations to Solve Complex Problems (CAT/CMAT/GRE/GMAT)
Monty Hall Problem - Numberphile
What is a z score?