Median
Middle number
The median is a statistical measure used to represent the central tendency of a group of numbers. It is the middle value in a dataset when the values are arranged in numerical order.
To find the median of a dataset, first, arrange the data in ascending or descending order. If there is an odd number of values, the median is the middle value. If there is an even number of values, the median is the average of the two middle values.
For example, consider the dataset: 2, 5, 7, 8, 10.
To find the median, first arrange the data in numerical order: 2, 5, 7, 8, 10.
Since there is an odd number of values, the median is the middle number, which is 7. Therefore, the median of this dataset is 7.
Alternatively, consider the dataset: 3, 4, 7, 9.
To find the median, first arrange the data in numerical order: 3, 4, 7, 9.
Since there is an even number of values, the median is the average of the two middle numbers, which are 4 and 7. Therefore, the median of this dataset is (4+7)/2 = 5.5.
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