Explain the flaw in this argument and rewrite it as a valid statement. The probability of throwing a 6 on a fair die = 1/6. Therefore, the probability of throwing at least one six in six tosses of the die is 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 1 so it is a certainty.