Earthquakes of magnitude 7.0 and higher occur at a rate of about 1.2 per month worldwide. In 2018-2019 (i.e. a 104 week period) there were a total of 25 earthquakes of magnitude 7.0 or larger. What is the probability that 2 or more earthquakes occurred in the same week (this did happen, by the way . . .)?

I should not use distribution.

I should use 1 - probability that all of earthquakes happened on separate weeks

Hwo can I solve this question