roblem #6: Each day, John performs the following experiment. He flips a fair coin repeatedly until he gets a 'T' and counts the number of coin flips needed. (a) Approximate the probability that in a (non-leap) year there are at least 2 days when he needed strictly more than 9 coin flips. (b) Approximate the probability that in a year there are strictly more than 18 days when he needed exactly 4 coins flins

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