Outliers - Box and Whisker Plot (1.5 IQR)

Learn how to find which data points are outliers using a box and whisker plot. We discuss the method of working with 1.5 times the interquartile range to find out which data points are outliers. We also discuss how to construct a box and whisker plot by finding the median, lower quartile, upper quartile, maximum and minimum.

Jump to Section of this Video:
0:06 What is an outlier?
0:28 How to create a box and whisker plot
0:36 How to find the median
0:54 How to find the median when there is an even number
1:17 How to find the Upper Quartile and Lower Quartile
1:57 How to graph box and whisker plot on number line
2:33 How to graph the whiskers using the minimum and maximum
2:44 How to find the IQR (interquartile range)
3:08 Use 1.5 IQR to find outliers

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