The median is a measure of central tendency which identifies the middle value in a set of numbers. To find the median, the numbers in the set must first be arranged in ascending or descending order. If there is an odd number of values, the median is the middle number. If there is an even number of values, the median is the average of the two middle numbers.
Example 1: Odd Number of Values
Find the median of the set [3, 1, 9, 7, 5].
First, arrange the numbers in order: [1, 3, 5, 7, 9].
Since there are 5 numbers, the median is the middle one: 5.
Example 2: Even Number of Values
Find the median of the set [8, 2, 5, 3, 10, 6].
First, arrange the numbers in order: [2, 3, 5, 6, 8, 10].
Since there are 6 numbers, the median is the average of the 3rd and 4th numbers: (5 + 6) / 2 = 5.5.
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