Combinations: An Explanation (Algebra I)

Here you'll learn another method of calculating the number of ways in which objects can be arranged, one in which the order of the objects does not matter, called a combination. You'll also use factorial notation in a formula to find the number of combinations.

This video provides an explanation of the concept of combinations.

This is part of CK-12’s Algebra I: Probability and Statistics. See more at:

1. Measurement of Probability:

2. Empirical Probability:

3. Permutations:

4. Probability and Permutations:

5. Combinations:

6. Probability and Combinations:

7. Mutually Exclusive Events:

8. Independence versus Dependence:

9. Measures of Central Tendency and Dispersion:

10. Measures of Spread/Dispersion:

11. Stem-and-Leaf Plots and Histograms:

12. Box-and-Whisker Plots:

13. Sampling Methods: