public static function describe(array $numbers) : array
{
return ['mean' => self::mean($numbers), 'median' => self::median($numbers), 'mode' => self::mode($numbers), 'geometric_mean' => self::geometricMean($numbers), 'harmonic_mean' => self::harmonicMean($numbers), 'contraharmonic_mean' => self::contraharmonicMean($numbers), 'quadratic_mean' => self::quadraticMean($numbers), 'trimean' => self::trimean($numbers), 'iqm' => self::iqm($numbers), 'cubic_mean' => self::cubicMean($numbers)];
}