//! Statistics
/// Example
/// ```rust
/// let average = bose::statistics::average(&[10.0, 20.0, 30.0, 40.0, 50.0]);
/// assert_eq!(30.0, average);
/// ```
/// Example
/// ```rust
/// let mean = bose::statistics::mean(&[10.0, 20.0, 30.0, 40.0, 50.0]);
/// assert_eq!(30.0, mean);
/// ```