Question

Find the outlier in the following set of data.

6.1, 0.6, 4.9, 6.6, 5.9, 3.3, 5.1, 5.4

Answer 1

The "outlier" in this case would be a single point of data that is much farther from any of the other data points than the rest of the data are from each other.

For example, 6.1 is pretty close to all of the other data points, so it would not be an outlier. In the same way, 5.4 is pretty close to all of the other data points, so it does not stand out as an outlier either.

There are more mathematically rigorous ways of selecting outliers; for instance, you can use calculations to see which data point, if removed, would decrease the standard deviation most; you can find the median and pick the data point(s) which are farthest from that value...

For this one, it should be fairly obvious at a glance what the outlier is. Let me know if you need some more hints

Answer 2

0.6 because it is super far away than
any others?

Answer 3

Good answer! I'd agree with your reasoning and your conclusion, well done.

Answer 4

These are the answers. So you can see for a double check


5.1
6.6
5.9
0.6