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11. The Q-Train arrives every 120 seconds. Given that a rider waited more than 90 seconds, what's the probability they wait less than 117 seconds?10.

11. The Q-Train arrives every 120 seconds. Given that a rider waited more than 90 seconds, what's the probability they wait less than 117 seconds?10. Clinical trials established that 86.2% of patients make a full recovery from a particular surgery. If 290 patients undergo the surgery, what is the probability more than 260 will make a full recovery

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