Source: https://xkcd.com/2689/

# Tag: xkcd

# Rounding

For more details on how this rounding works, see https://www.explainxkcd.com/wiki/index.php/2585:_Rounding.

# Selection Bias

# Decorative Constants

# Constructing the Null and Alternate Hypotheses

# Fun with units

Source: https://xkcd.com/2526/

# Bayes’ Theorem

Source: https://xkcd.com/2545/

# Fun with statistical significance

Source: https://xkcd.com/2533/

# Useful geometric formulas

Geometry textbooks always try to trick you by adding decorative stripes and dotted lines.

If you’re having trouble getting the formulas behind the joke, please see https://www.explainxkcd.com/wiki/index.php/2509:_Useful_Geometry_Formulas.

# Usefulness of Mathematical Symbols in a Fight

Source: https://xkcd.com/2343/