Question: 6 The probability is p that a randomly chosen lightbulb is defective. We screw a bulb into a lamp and switch on the current. If
6 The probability is p that a randomly chosen lightbulb is defective. We screw a bulb into a lamp and switch on the current. If the bulb works, we stop; otherwise, we try another and continue until a good bulb is found. What is the probability that at least n bulbs are required?
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