When the entry of 1 is replaced by the outlier value of 11111, the mean changes from 172.5 to 450.2 so the affect of the outlier is vary substantial
The incorrect entry of 11111 causes the standard deviation to change from 119.5 to 1732.7, so the affect of the outlier here is also substantial
Figure 2-1 in section 2-3 depicts the histogram for the correct values of cotinine levels of smokers in table 2-1 , but the STATDISK display presented here shows the histogram that results from using the same data with the value of 1 replaced by the incorrect value of 11111
Compare this STATDISK histogram to Figure 2-1 and you can easily see that the presence of the outlier dramatically affects the shape of the distribution