##### Asked by: Kirilov Gaubert

asked in category: General Last Updated: 18th May, 2020# How do you tell if there are outliers in a 5 number summary?

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Keeping this in view, do you include outliers in 5 number summary?

The **five numbers** are the minimum, the first quartile(Q1) value, the median, the third quartile(Q3) value, and the maximum. The first thing **you** might notice about this data set is the **number** 27. This is very different from the rest of the data. It is an **outlier** and must be removed.

Beside above, what is the purpose of a 5 number summary? The **five**-**number summary** gives information about the location (from the median), spread (from the quartiles) and range (from the sample minimum and maximum) of the observations.

Simply so, what defines an outlier?

Usually, the presence of an **outlier** indicates some sort of problem. A convenient definition of an **outlier** is a point which falls more than 1.5 times the interquartile range above the third quartile or below the first quartile. **Outliers** can also occur when comparing relationships between two sets of data.

How do you do a five number summary?

**How to Find a Five-Number Summary: Steps**

- Step 1: Put your numbers in ascending order (from smallest to largest).
- Step 2: Find the minimum and maximum for your data set.
- Step 3: Find the median.
- Step 4: Place parentheses around the numbers above and below the median.
- Step 5: Find Q1 and Q3.