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Two different colored dice are rolled simultaneously. What is the probability of getting a sum of at least 5?

Question

Two different colored dice are rolled simultaneously. What is the probability of getting a sum of at least 5?

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Solution

To solve this problem, we need to understand the total number of outcomes when two dice are rolled and the number of outcomes that result in a sum of at least 5.

Step 1: Total number of outcomes When two dice are rolled, each die has 6 faces. So, the total number of outcomes is 6*6 = 36.

Step 2: Favorable outcomes We need to find the number of outcomes that result in a sum of at least 5. This means we need to consider the sums of 5, 6, 7, 8, 9, 10, 11, and 12.

Here are the combinations:

  • For a sum of 5: (1,4), (2,3), (3,2), (4,1)
  • For a sum of 6: (1,5), (2,4), (3,3), (4,2), (5,1)
  • For a sum of 7: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1)
  • For a sum of 8: (2,6), (3,5), (4,4), (5,3), (6,2)
  • For a sum of 9: (3,6), (4,5), (5,4), (6,3)
  • For a sum of 10: (4,6), (5,5), (6,4)
  • For a sum of 11: (5,6), (6,5)
  • For a sum of 12: (6,6)

Counting these combinations, we get 4+5+6+5+4+3+2+1 = 30 favorable outcomes.

Step 3: Probability

This problem has been solved

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