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They are some measure of the dispersion or range of numbers in the set of data.
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The whiskers mark the ends of the range of figures - they are the furthest outliers. * * * * * No. Outliers are not part of a box and whiskers plot. The whiskers mark the ends of the minimum and maximum observations EXCLUDING outliers. Outliers, if any, are marked with an X.
A box and whisker plot may not have whiskers if all the data points fall within the interquartile range (IQR), resulting in no values outside this range. This can occur in a dataset where all values are identical or very closely clustered within the quartiles. Additionally, if there are outliers that are significantly distant from the rest of the data, the whiskers may extend only to the closest non-outlier values, potentially leading to situations where one or both whiskers are absent.
A box plot is a visual representation of the distribution of a dataset. It displays the minimum, first quartile, median, third quartile, and maximum values of the dataset. The "box" in the plot represents the interquartile range, while the "whiskers" represent the range of the data excluding outliers.