In statistics, the median (from the Latin mediānus’ of the medium’) represents the value of the central position variable in a set of ordered data. How to find the median?
The median of a group of numbers is that the average number in the group (after the amounts are ordered from lowest to highest) – or, even if there’s an even number of numbers, the median would be the average of both typical amounts.
The median is the arithmetic median of a set of numbers. Is also a numerical value that separates the upper half of a set from the lower half. You can use the median is used for normal distributions of numbers, with a low number of atypical values.
How to find the median?
- We order the data from the smaller to the biggest value.
- If the series has an odd number of values, the median is the central value.
- 2, 3, 4, 4, 5, 5, 5, 6, 6 Me = 5
- If the series has an even number of values, the median is the mean between the two central values.
- 7, 8, 9, 10, 11, 12 Me (10+9)/2 = 9,5
There are two methods for calculating the median:
- Considering the data individually, without grouping them.
- Using the data grouped in class intervals.
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