In a period of 8274 days there are 48 time-windows of 15 days that occur at intervals of roughly every 584 days. Also during this 8274 period there are 546 airplane crashes. 1. What is the probability that a plane crash will occur during one of these time-windows? 2. It is found that 30 plane crashes have occurred during these event-windows. What is the probability of this occurring?

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In a period of 8274 days there are 48 time-windows of 15 days that occur at intervals of roughly every 584 days. Also during this 8274 period there are 546 airplane crashes.

1. What is the probability that a plane crash will occur during one of these time-windows?

2. It is found that 30 plane crashes have occurred during these event-windows. What is the probability of this occurring?

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