Posted by **Lyndse** on Sunday, February 21, 2010 at 12:21pm.

Roughly speaking, the standard deviation indicates how far, on average, the observations are from the mean. Do you think that for the data set below the standard deviation will give a good indication of the typical deviation from the mean?

2, 3, 4, 4, 5, 5, 6, 6, 100

What drawback of the standard deviation is illustrated by this example?

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**Lyndse**, Sunday, February 21, 2010 at 12:52pm
I don't see any drawbacks

- Math -
**Mary Ann**, Thursday, October 1, 2015 at 12:23pm
The standard deviation includes Outliers like "100", and may give a false picture of the data.

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