Python - Python Machine Learning - Mean Median Mode Part 2: Understanding Median in Machine Learning

The **median** is the middle value in a sorted dataset. If the dataset has an odd number of elements, the median is the middle one. If it has an even number of elements, the median is the average of the two middle values.

Example 1: Odd Number of Elements

data = [10, 20, 30, 40, 50]

median_value = np.median(data)

print("Median:", median_value)

Explanation: Since there are 5 numbers, the middle one (30) is the median.

Example 2: Even Number of Elements

data = [10, 20, 30, 40]

print("Median:", np.median(data))

Explanation: The median is (20+30) / 2 = 25 because the dataset has an even number of elements.