Assume that the Richter scale magnitudes of earthquakes are normally distributed
ID: 284396 • Letter: A
Question
Assume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1.083 and a standard deviation of 0.554 Complete parts a through c below. Earthquakes with magnitudes less than 2.000 are considered "microearthquakes* that are not felt What percentage of earthquakes fall into this category? (Round to two decimal places as needed) Earthquakes above 4.0will cause indoor items to shake What percentage of earthquakes fall into this category? (Round to two decimal places as needed) Find the 95th percentile (Round to three decanal places as needed) Will all earthquakes above the 95th percentile cause indoor items to shake? Yes. because all earthquakes above the 95th percentile have magnitudes above 4.0. No. because not all earthquakes above the 95th percentile have magnitudes above 4 0. Yes. because earthquakes above the 95th percentile are very rare and powerful No. because no earthquakes above the 95th percentile have magnitudes above 4 0.Explanation / Answer
answer- Microearthquake are those quke whose magnitude is less than 2. Near around 91.7 percentage of earthquake falls in this category of microearhtquake. these kind of earthquake are not easily observable. these are very low intensity earthquake. these earthquake occur near the volcano and used to determination of geothermal energy. the average frequency of occurence of these earthquake is continue million earthquake in year
answer- near around 0.00001 percentage earthquake occurs whose mangtitude is above 4.
answer- option D no becuase no earthquake aobve the 95th percentile have magntitude above 4.0. because all above 95.0 percentile have magnnitude less than 4.0