Probability equation using arc4random ios

Question

I want to perform a random action on a button click using probability. For example: If I click a button there is 6% chance of running A method and 94%chance of running B method

Answer 1

- (void)click
{
   int chance = arc4random_uniform(100);

   if (chance < 6)
      [self runA];
   else
      [self runB];
}