Statistics: The average | Descriptive statistics | Probability and Statistics | Khan Academy
Why the open web links it
Explains the concepts of mean, median, and mode as measures of central tendency in statistics.
Linked by 10 independent sites, 4 of them widely read in the 2026-10 crawl of the open web, including ucl.ac.uk, wikidot.com, uni-goettingen.de, london.edu, lewagon.com.