The two were not compared fairly since in the family deal we used variations with repetition and for the double delights, we used combinations without repetition. if we used Variation without repetition in the family deal example, we would get 12 variations for the drinks which would make them the same.

Hey Akram, Thank you for your comment! Let's discuss the situation of choosing drinks for the Family Deal. The reason we use variations is because we have a small and a large cup, so it matters which drink goes where. However, they do allow for repetition, that is, they can have the same drink in both cups. It would therefore be inappropriate to choose variations without repetition for this situation. Hope this helps! Kind regards, 365 Hristina

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Akram Adam

Last answered:

19 Apr 2022

Posted on:

18 Apr 2022

Family Deal and Double Delight should be the same number of options

in Probability / Practical Example - Combinatrics

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Hristina Hristova

Posted on:

19 Apr 2022

Family Deal and Double Delight should be the same number of options

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