Multiple choice

What is the probability of getting the sum of numbers on both dices equal to 1 when two unbiased dices are thrown at a time?

  1. 1/36

  2. 1/6

  3. 1

  4. 0

  5. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The minimum sum of two dice is 1+1=2. Therefore, the probability of getting a sum of 1 is 0.

AI explanation

When two unbiased dice are thrown, the minimum possible sum occurs when both dice show a 1, which results in a sum of 2. Because it is physically impossible to roll a sum of 1 with two dice, there are zero favorable outcomes among the 36 possible combinations. The probability of an impossible event is always 0.