- mean number of sheets
- mean of a probability distribution
- mean of a random variable
- mean of a stationary process
- mean of means
- mean of statistical data
- mean on a group
- mean on a semigroup
- mean order statistic
- mean ordinate
- mean oscillation
- mean oval
- mean over the column
- mean over the period
- mean over the row
- mean-periodic function
- mean-power approximation
- mean product
- mean proportional
- mean p-valent function
- mean-quadratic regression
- mean range
- mean recurrence time
- mean regression
- mean run density