Algorithms

  1  Random rnd = new Random();
  2  
  3  int selector = rnd.Next(1, 10);
  4  
  5  if (selector <= 3) { // select something from the A group }
  6  else { // select something from the B group }

  1  Random rnd = new Random();
  2  
  3  int selector = rnd.Next(1, 10);
  4  
  5  if (selector in {1, 2}) { // select something from the A group }
  6  else if (selector in {3, 4, 5, 6, 7}) { // select something from the B group
  7  else { // select something from the C group }

  1  A = { 1, 2, 3, 4 } // we want EXACTLY 30% of our answers to come from here
  2  B = { 5, 6, 7, 8 } // we want EXACTLY 70% of our answers to come from here

1. Generate a list of numbers, 1 through 100
2. [[Generate a random integer between 1 and 100]] to select one of these numbers
3. If the random number is not in our list
    a) [[Get a number that IS in the list]]
4. If the number we selected is in range 1  - 30, then [[select one from group A]]
5. If the number we selected is in range 31 - 100, then [[select one from group B]]
6. Remove the number from our list!
7. If the list is empty, regenerate it with 1 through 100