Question spawn rate equally in 3 spawn point how to make it random spawn rate

the output of these code is spawn rate equally to 3 spawn point, how to make it spawn rate different in 3 spawn point

Code (CSharp):

1.   void SpawnObstacle1()
2.     {
3.         for (int i = 0; i < spawnPoint.Length; i++)
4.         {   //random rate
5.             float RandomSpawnRate = Random.Range(1f, spawnRate);
6.             // time rate for next spawn spawnrate
7.             nextSpawn = RandomSpawnRate + Time.time;
8.             // ramdom obstacle in obstacles length( how many obstacle inside array)
9.             int randomObstacle = Random.Range(0, obstacles.Length);
10.             // object output  at the position
11.             Instantiate(obstacles[randomObstacle], spawnPoint[i].position, Quaternion.identity);
12.         }
13.     }

 

Instead of an array of Transform, use an array of an object that contains a Transform and another variable called spawnRate. for example.

 

ok... i put the different transform speed for the spawn object