Description Usage Format Details Source References
Distribution of 787 guesses in a cow weight-judging competition. These data was used by Galton to in a series of letters to Nature to illustrate the wisdom of crowds.
1 |
A data frame with 19 rows and 3 columns.
name | type | description |
quantile | "numeric" | Quantile of the distribution of guesses. |
estimate | "numeric" | Value of the guess (lbs.) |
normal | "numeric" | Quantile values of a normal distribution with a median of 1,207 lbs. and a probable error (half the interquartile range) of 37 lbs (standard deviation of 25 lbs). |
The actual weight of the cow was 1,198 pounds.
Galton, Francis. 1907. "Vox Populi." Nature. doi:10.1038/075414a0
Galton, Francis. 1907. "One Value, One Vote." Nature. doi:10.1038/075414a0
Galton, Francis. 1907. "Ballot Box." Nature doi:10.1038/075509e0
Hooke, R. H. 1907. "Mean or Median." Nature. doi:10.1038/075487a0
Yule, G. Udny. 1907. "Mean or Median." Nature. doi:10.1038/075534b0
Kenneth W. Wallis. 2014. "Revisiting Francis Galton's Forecasting Competition" https://arxiv.org/pdf/1410.3989.pdf
Levy, D. M. and Peart, S. (2002). Galton's two papers on voting as robust estimation. Public Choice 113 357<e2><80><93>365.
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