Question: Geoscientists estimate that, on average, a given region has a major earthquake every 250 years. Assuming that the time between major earthquakes in this region

Geoscientists estimate that, on average, a given region has a major earthquake every 250 years.

Assuming that the time between major earthquakes in this region is exponentially distributed, what is the probability that a major earthquake:

a. will not occur between 2020 and 2030?

b. will occur between 2020 and 2070?

c. will not occur between 2020 and 2200?

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