
{{alias}}( x )
    Tests if a numeric value is a probability.

    A probability is defined as a numeric value on the closed interval `[0,1]`.

    Parameters
    ----------
    x: number
        Value to test.

    Returns
    -------
    bool: boolean
        Boolean indicating whether the value is a probability.

    Examples
    --------
    > var bool = {{alias}}( 0.5 )
    true
    > bool = {{alias}}( 3.14 )
    false
    > bool = {{alias}}( NaN )
    false

    See Also
    --------

