Concept explainers
A card reunion (H). Using a shuffled deck of cards, remove cards from the top of the deck in pairs. For each pair where at least one of the cards is black, record whether both cards are black or one is black and one is red. After you have gone through 10 pairs, reshuffle the deck and repeat until you have recorded 50 cases where at least one card of the pair is black. What fraction of those pairs had both cards black?
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