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How do you find the Ouartiles and the IQR?


How do you find the Ouartiles and the IQR?

Step 1

Quartiles are values that divide the entire set of data into quarters. The different types of quartiles are the first quartile (Q1) median or the second quartile (Q2) and the third quartile (Q3).

First quartile is defined as the observation that lies on the mid-point between the lowest data value and median data value.

The median or second quartile can be defined as the number that is halfway into the dataset. To find the median, the data should be arranged in ascending order.

Third quartile is defined as the observation that lies on the mid-point between the median data value and highest data value.

Step 2

To find the quartiles, follow the below steps:

Step 1: Arrange the data in order of least to greatest.

Step 2: Find the median, second quartile that divide the data set into two halves.

Step 3: Again, find the median of these t...

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