What’s the optimal distribution of marbles between two drawers to maximize the chance of drawing a red marble?
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Concise Answer: Place one red marble in one drawer and all other marbles in the second drawer.
Detailed Explanation: To maximize the chance of drawing a red marble, you can exploit the fact that selecting the drawer and the marble are sequential events. By placing one red marble alone in one drawer, the probability of drawing it (if that drawer is chosen) is 100%. Since drawers are selected randomly, the overall probability of getting a red marble is maximized.