Median

In statistics, the median is the value separating the higher half from the lower half of a data sample. It is a measure of central tendency and is often used as a robust alternative to the mean. The median is calculated by sorting the data set in ascending or descending order and finding the middle value. If the data set has an odd number of observations, the median is the middle value. If the data set has an even number of observations, the median is the average of the two middle values. The median is useful in data science for summarizing the central tendency of a data set, especially when the data contains outliers or extreme values that can skew the mean. It is also used in machine learning algorithms for data preprocessing and feature engineering.
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