According to geologists, the San Francisco Bay Area experiences five earthquakes with a magnitude of 6.5 or greater every 100 years. What is the expected value of the number of earthquakes with a magnitude of 6.5 or greater striking the San Francisco Bay Area in the next 40 years?
A) 1.414
B) 2.000
C) 2.236
D) 5.000

Question

Quizplus · Accepted Answer

The expected value is calculated by taking the rate of earthquakes per year and multiplying it by the number of years in question. Given that there are 5 earthquakes every 100 years, the rate is 5/100 = 0.05 earthquakes per year. For 40 years, the expected number of earthquakes is 0.05 * 40 = 2.

According to Geologists, the San Francisco Bay Area Experiences Five