Two fair dice are rolled. What is the probability of getting a sum of ...
E = {(1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1)}
n(E) = 6 , n(S) = 36 ⟹ P(E) = 6/36 = 1/6
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Two fair dice are rolled. What is the probability of getting a sum of ...
Probability of Getting a Sum of 7 when Rolling Two Fair Dice:
To find the probability of getting a sum of 7 when rolling two fair dice, we first need to determine all the possible outcomes when rolling two dice. Each die has 6 sides, so there are a total of 6 x 6 = 36 possible outcomes when rolling two dice.
Calculating the Number of Ways to Get a Sum of 7:
When rolling two dice, there are a total of 6 ways to get a sum of 7:
- (1,6)
- (2,5)
- (3,4)
- (4,3)
- (5,2)
- (6,1)
Calculating the Probability:
To calculate the probability of getting a sum of 7, we divide the number of ways to get a sum of 7 by the total number of possible outcomes:
Probability = Number of ways to get a sum of 7 / Total number of possible outcomes
Probability = 6 / 36
Probability = 1 / 6
Therefore, the correct answer is option B) 1/6. The probability of getting a sum of 7 when rolling two fair dice is 1/6.