1. The boxplot shows the mean plus or minus one standard deviation of the data.
2. Any data outside the box of the boxplot are outliers and should be removed from the data.
3. Wider bins produce a histogram with fewer modes than would be found in a histogram with very narrow bins.
4. If a histogram is multimodal, the bin widths should be increased until only one bin remains.
5. If data are right skewed, the mean is larger than the median.
6. The histogram balances on the mean.

  • CreatedJuly 14, 2015
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