We will use our Zillow data from before

38

60

60

70

90

101

250

Recall that we had:

Median=70

IQR=41

and we calculuate the mean

Mean=\(\overline{x}=\frac{\sum x}{7}=95.6\)

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In the previous example we did see that we had an outlier of 250, so let's look at what happens when we ignore that data value

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38

60

60

70

90

101

Median=65

IQR=30

Mean=\(\overline{x}=\frac{\sum x}{6}=59.85\)

So we see that our mean is the most effected by ignoring the outlier!