Choose random from given numbers

Is there some function in C# like:

var randomN = choose(1,5,10,15);

Let`s say. I need to specify those numbers. Some simple function please. Random.Range() is not what I need.

REASON:

I need to pick spawn area that is not too far from space station, nor too close to station or ship will spawn in the center of it.

var nums=[1, 5, 10, 15];
var randomN = nums[Random.Range(0, nums.Length)];