What is Statistics?
April 12, 2026 • 12 min read • Math
Statistics is the science of collecting, analyzing, interpreting, and presenting data. This guide explains central tendency, variability, and how statistics helps us make sense of information.
Measures of Central Tendency
Mean: Average (sum ÷ count)
Median: Middle value when ordered
Mode: Most frequent value
Measures of Variability
Range: Difference between max and min
Variance: Average squared deviation from mean
Standard Deviation: Square root of variance, measures spread
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