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zakruti.com » Knowledge, science, education » TED-Ed
How many ways can you arrange a deck of cards? - Yannay Khaikin

How many ways can you arrange a deck of cards? - Yannay Khaikin

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Rating: 4.0; Vote: 1
One deck. Fifty-two cards. How many arrangements? Let's put it this way: Any time you pick up a well shuffled deck, you are almost certainly holding an arrangement of cards that has never before existed and might not exist again. Yannay Khaikin explains how factorials allow us to pinpoint the exact (very large) number of permutations in a standard deck of cards. Lesson by Yannay Khaikin
Date: 2020-08-22

Comments and reviews: 4


The answer to the question, How many ways can you arrange a deck of cards? has an answer that is much smaller than the question, How many ways can the cards in a deck of cards be ordered?
You have a limited time you will live.
So, the video does not answer the question in the title.

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But if youre holding only a select number of cards, say n, youre dividing that amount by the (52-n! decks only differing in the cards youre NOT holding, giving a way smaller number. In fact for 8 cards, its a mere 31013. So unless youre using ALL cards, this calculation is incidental.
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Corona virus multiply itself one by one every minute. For example, 1 minute passed and the virus is now 2, 2 minutes passed and the virus is now 4 and so on.
Question:
how many droplets of virus are there now after an hour?

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If there are so many different ways to arrange a deck of cards, then how are certain arrangements of cards, like a flush, royal flush, straight flush, four of a kind, full house, so common?
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