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How to describe distribution in a histogram - Coggle Diagram
How to describe distribution in a histogram
Shape
Direction
Skewed to the left: distribution has a long tail that extents to the left
Symmetric: the distribution has an equal form on each of its side
Skewed to the right: distribution has a long tail that extents to the right
Number of peaks
Bimodel: when there are 2 peaks
Multimodel: when there are more than 2 peaks
Unimodel: when there's only 1 peak
Uniform: no peaks at all, the same height througout
Outliers
Outliers are individual data that seems to be isolated (far away) from most of others. We usually call them "Potential ouliters".
Center
Median: the middle number. We use this when the distribution is pretty skewed.
Mean: add up all the appeared numbers and divide the sum by the amount of numbers. We use this when the distribution is quite
Mode: the number that appears the most
Spread
Inter quartile range (IQR): We use this when the distribution is quite skewed.
Standard deviation: We use this when the distribution is quite symmetric.
Range: the difference between the maximun and the minimun