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Mean, Median, And Mode

This article explains the mean, median, and mode.

Mean

The mean is the sum of all values divided by the number of values. Consider the following dataset.

[2,4,6,8]

The mean of the above dataset is.

(2 + 4 + 6 + 8)/4 = 5

The middle value when the data is arranged in ascending or descending order.

Data: 1, 3, 5 → Median = 3
Data: 1, 3, 5, 7 → Median = (3 + 5) / 2 = 4

The value that appears most often.

Data: 1, 2, 2, 3 → Mode = 2
Data: 1, 2, 3 → No mode
Data: 1, 1, 2, 2 → Two modes (bimodal)

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