NumPy: NumPy is a powerful open-source library for scientific computing in Python, providing support for large, multi-dimensional arrays and matrices, along with a large collection of high-level mathematical functions to operate on these arrays.
Central Tendency: Central tendency is a statistical measure that identifies a single value that best represents the center or typical value of a dataset. The median is one of the measures of central tendency, along with the mean and mode.
Array: An array is a collection of elements (values or variables) that are all of the same data type, stored in contiguous memory locations. NumPy arrays are powerful data structures that provide efficient operations and calculations on large datasets.