A free online Data Analaysis, Five (5) number summary calculator to find the 5 number summary for any number series like minimum and maximum number, 1st quartile, median and 3rd quartile. It is a descriptive statistic that provides information about a set of observations.
The five (5) number summary calculator is much useful in describing the statistics of the data. For example, a set of observations can be summarised and the largest among them can be communicated. With 5 number summary, it is possible to compare several sets of observations easily. The observations are represented graphically using a boxplot. Just enter the number series separated by comma, in the above Five (5) Number Summary Calculator to get the output.
Let us consider the data set as (1,3,5,6,7,9,12,15,18,19,25)
Step 1: First we need to arrange the date set in ascending order. As the given data set is ascending we skip to the next step.
Step 2: Find minimum and maximum number in the data set.
Here, Minimum number is 1 & Maximum number is 25
Step 3: Find Median.
Median = Median is the center element (Ascending order)
Step 4: Find Q1 and Q2
Q1 is the median in the lower half of the data, and Q3 is the median in the upper half of data.
Therefore, Q1 = 5 and Q2 = 18.