BOX AND WHISKER PLOT OUTLIERS HOW TO
BOX AND WHISKER PLOT OUTLIERS PLUS

Maximum value (Q 4 or 100th percentile): The maximum specified value in the given dataset distribution, shown at the rightmost end. Third quartile (Q 3 or 75th percentile): The third quartile (Q 3) at the right side, which corresponds to the area in between the median and the maximum value. Median (Q 2 or 50th percentile): The median value, depicted by the line corresponding to the center of the box. Minimum value (Q 0 or 0th percentile): The minimum specified value in the given dataset distribution, shown at the leftmost end.įirst quartile (Q 1 or 25th percentile): The first quartile (Q 1) at the left side, which corresponds to the area in between the minimum value and median. The elements required to construct a box and whisker plot outliers are given below: It is also used where huge numbers of data collections are involved or compared.It is particularly useful for descriptive data interpretation.This is because, the center, spread, and overall range are instantly apparent in the case of a box plot. Herein, the arrangements can be matched with each other.

It reflects information about how the data is spread out.

It also provides an insight into the data set, that whether there is potential unusual observation.

Particularly used to reflect if the dataset given is a skewed distribution or not.

This implies that it has five pieces of information.

It exhibits data from a five-number summary, which is also inclusive of one of the measures of central tendency.

This concept is shown in the below figure: The small lines, called the whiskers go from each of the quartiles towards the minimum or maximum value. A vertical line that goes through this plotted box corresponds to the median of the data distribution. Upon plotting a graph for the box plot, a box starting from the first quartile to the third quartile is outlined. It also provides additional information corresponding to the multiple sets of data which is displayed in the same graph.īox plots can necessarily be used in situations when: However, if we compare a box plot and histogram, the latter offers a sufficient display. A histogram can also be used in order to display the data. Boxplot is a variation of the graphical method which is used to illustrate the variation of the data in the data distribution. It can also be used to visualize the data. Boxplots are used to interpret and analyze the data.

BOX AND WHISKER PLOT OUTLIERS HOW TO

How to find square roots without a calculator?īox plot is basically an interval scale that is used to perform estimation which necessarily performs the abstraction of the data.

BOX AND WHISKER PLOT OUTLIERS PLUS

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Box and whisker plot outliers