Tag Archives: Histogram

Looking at Spread

In the previous post Two Statisticians in a Battlefield, we discussed the importance of reporting a spread in addition to an average when describing data. In this post we look at three specific notions of spread. They are measures that … Continue reading

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The Tax Return of Mitt Romney

Mitt Romney is currently a candidate for the 2012 Republican Party nomination for U.S. President. He recently, bowed to pressure from another presidential candidate in the Republican Party, had to release his past tax returns. The release of these tax … Continue reading

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Another Look at LA Rainfall

In two previous posts, we examined the annual rainfall data in Los Angeles (see Looking at LA Rainfall Data and LA Rainfall Time Plot). The data we examined in these two post contain 132 years worth of annual rainfall data … Continue reading

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The Safest Driving City in America

Which city in America has the worst drivers? When I asked this questions, many people guessed New York or Los Angeles. How about the city with the safest drivers? According to a recent report released by The Allstate Insurance Company, … Continue reading

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LA Rainfall Time Plot

In a previous post, we had an elementary look at the seasonal rainfall data in Los Angeles, California, using graphs (histograms) and numerical summaries to describe the data. The rainfall data were collected over time (total rainfall in inches over … 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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A Statistical Look at the Amendments to the United States Constitution

The Constitution of the United States is the supreme law of the United States. The framers of the Constitution were aware that changes to the Constitution would be necessary from time to time. A two-part process was set up for … Continue reading

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