Limited access

Upgrade to access all content for this subject

For one calendar year, data on the magnitude (on the Richter Scale) and depth (in kilometers) of every earthquake recorded around the world was compiled. There were over $17,000$ earthquakes recorded. Below is a scatterplot of the depth and magnitude of the earthquakes:

The graphs below are percentile plots. The percentiles of the magnitude measurements are graphed at left, while the percentiles of the depth measurements are graphed at right.

Part 1:
At which of the following depths was there the greatest variability in magnitude recorded?
Select Option 30 km300 km560 km700 km

Part 2:
Approximately what percent of all earthquakes appear to have a magnitude greater than $5.0$ on the Richter scale?
Select Option 5%50%95%62.5%

Part 3:
Estimate the median depth of an earthquake.
Select Option 350 km40 km80 km100 km

Part 4:
On the Richter Scale, a magnitude $6.0$ earthquake is ten times as intense as a magnitude $5.0$ earthquake. Each increase of $1.0$ units on the Richter scale is a ten-fold increase in intensity. Find the approximate difference in percentile ranks between a magnitude $3.0$ earthquake and an earthquake that is $1,000$ times more intense.
Select Option 20%6%75%50%

Select an assignment template