Tag Archives: Scatterplot

Are Small City Drivers Safer than Large City Drivers?

To answer this question, we focus on cities with population of 100,000 and up. In this group of cities, are the drivers in the smaller cities safer than the drivers in large metropolitan areas? A recent report from Allstate Insurance … Continue reading

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Looking at LA Rainfall Data

This is a demonstration of using descriptive statistics (using graphs and numerical summaries) to make sense of a one-variable data set (the seasonal rainfall data in Los Angeles). The techniques we use are frequency distribution, histogram, and various numerical summaries. … Continue reading

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San Francisco Annual Rainfall Data – A Regression Example

This is an introductory article on simple linear regression. For a good reference of statistics at the introductory level, see [1]. 1. The Data The following is a table containing the annual rainfall data (the number of rain days and … Continue reading

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