Jude has a deck of playing cards. He is asked to remove one card at random, then a second card. What could Jude do between the events to ensure they are dependent?

To make the events dependent, the first removal must change the chances of what happens on the second removal. If Jude puts the first card in his pocket, it is not returned to the deck, so the second draw is from a smaller deck with different card counts. Thus, “put the first card he removed into his pocket” ensures the events are dependent.

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