Quartile Calculator

Use our online Quartile calculator to calculate q1, q2 & q3. For calculating these, enter the observed values in the input fields, the Q1, Q2, Q3 calculator tool will update you the results. Values must be numeric and separated by commas.

Q1, Q2, Q3 Calculator

Use our online Quartile calculator to calculate q1, q2 & q3. For calculating these, enter the observed values in the input fields, the Q1, Q2, Q3 calculator tool will update you the results. Values must be numeric and separated by commas.

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A quartile is one of three points that divide a specific set of data into four equal groups. Each group is represented with 1/4 part of the distributed sampled population. The first one is written as Q1, the second as Q2 and third as Q3. Quartile has points from zero to the fourth quartile. This simple online Quartile calculator finds Q1 (lower) the first, second Q2 (median) and third Q3 (upper) values of the distributed sampled population. Also, you can refer the below-given quartiles Q1, Q2, Q3 calculation example problem to know how to know the steps for manual calculation with ease. This Q1, Q2, Q3 calculator is capable of fetching consistently reliable results all the times.

Example:

Find the first, second and third quartile of : 1,3,2,6,8,9,10,5

Solution:

Arranging the data in ascending order : 1, 2, 3, 5, 6, 8, 9, 10
First, we need to find median.
Here, median = 5 + 6 / 2
= 5.5
Hence,Q2= 5.5

To find First Quartile,
find the mean of the last two values of the lower half data.
Lower half data = 1, 2, 3.
= 2 + 3 / 2
= 2.5

To find Third Quartile,
find the mean of the first two values of the upper half data.
Upper Half data = 8, 9, 10
= 8 + 9 / 2
= 17 / 2
= 8.5


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