## 2 thoughts on “Counting Principles – Examples”

1. Amy says:

Hi, these examples are very useful, thank you! I’m just confused in the family party seating example – why is the number of ways of ordering family A, then B, then A, etc. 4! and not 4x4x3x3x2x2x1x1?

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1. Oops you are right Amy. I mistake on my part, I wrote 4x4x3x3x2x2x1x1 and should have written $(4!)^2 \times 2$. I’ll add a comment to the video also.

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