



 
Hi Brandi, I found some data on 49 earthquakes that causes significant damage in California. (This comes from a textbook without a reference so it may not be real data.) The numbers are the Richter Scale measurements of the quakes and range from 5.3 to 8.3. I decided to split the data into groups 5.0 to 5.4, 5.5 to 5.9, 6.0 to 6.4 and so on and present it in a stem and leaf plot. Here is my plot
As for a conclusion, that might depend on what you child's class is discussing. I see that range with the most earthquakes is from 6.0 to 6.4 on the Richer Scale. You might also notice that only five of the earthquakes measured over 7.4. You might also express his as a percentage, 5/49 × 100 = 10.2% of the earthquakes measured over 7.4. There is another example on the Statistics Canada site. I hope this helps,  


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