The Economics Network

Improving economics teaching and learning for over 20 years

Interactive Graphs for Statistics for Social Science

Martin Poulter, DeSTRESS Project

These graphs redraw themselves dynamically in response to user clicks (or touches, if you're using a tablet device). They are web pages with embedded programs, requiring no plug-ins or special software. They may be quite slow in some versions of Internet Explorer.

1. Effect on trendlines of censoring data
regression line; effect of choosing starting point
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2. Evaluating the Rule of 70
exponential growth; percentage error
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3. Mean versus median: film ratings
robustness of median relative to the mean
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4. Pearson versus Spearman correlations
types of correlation; similarities and differences
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5. Skew, mean and median
mode, mean, median of continuous (triangular) distribution
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6. Skew in a discrete distribution (counterpoint to above)
mode, mean, median of discrete (Poisson) distribution
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7. Measures of income spread
absolute and percentage change; range, s.d. and variance
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8. The power of compound interest
logarithmic axis
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9. Logarithmic axes and income
measures of spread; absolute change versus percentage change
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10. Arithmetic versus geometric mean
probability; expected return; geometric mean as long-term expected return
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11. The shape of the sampling distribution
sampling from a skewed distribution; distinguishing the population, sample and sampling distribution

12. Distribution of sample standard deviations and why we use n-1 to calculate sample sd (incomplete)
sampling; Bessel's correction

13. Correlation of a sample (incomplete)

Licences: Creative Commons Attribution-ShareAlike (text content); MIT licence (Javascript code).

University of Sussex

Interactive Excel spreadsheets

DeSTRESS Project

Except where stated, DeSTRESS resources are available under a Creative Commons Attribution-Noncommerical-ShareAlike licence which guarantees your right to remix and reuse.

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DeSTRESS was funded by the Higher Education Academy/ JISC Open Educational Resource programme.

The Higher Education AcademyJISC