The scatter plot in Figure gives the death toll for California earthquakes of various magn...

The scatter plot in Figure gives the death toll for California earthquakes of various magnitudes that occurred in the twentieth century.

Figure

California earth quakes.

Source: National Geophysical Data Center (NGDC)

a. Explain why, based on the scatter plot, the number of deaths is a function of the magnitude of the earthquake

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b. Give the magnitudes for two earthquakes that have the same number of deaths

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c. How many deaths occurred in the earthquake with magnitude 6.4?