Talk:Independent and identically-distributed random variables

From a practical point of view, an important implication of this is that if the roulette ball lands on 'red', for example, 20 times in a row, the next spin is no more or less likely to be 'black' than on any other spin.

I disagree with the above statement. The sequence is IID by definition, so it does not matter whether or not the previous 20 rolls resulted in red.