Math Problem Statement
Of the 36 possible outcomes, determine the number for which the sum (for both dice) is between 2 and 9.
Solution
The question asks to determine how many of the 36 possible outcomes (when rolling two dice) result in a sum between 2 and 9, inclusive.
Let's analyze:
Possible sums with two dice:
- Sum = 2: (1,1)
- Sum = 3: (1,2), (2,1)
- Sum = 4: (1,3), (2,2), (3,1)
- Sum = 5: (1,4), (2,3), (3,2), (4,1)
- Sum = 6: (1,5), (2,4), (3,3), (4,2), (5,1)
- Sum = 7: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1)
- Sum = 8: (2,6), (3,5), (4,4), (5,3), (6,2)
- Sum = 9: (3,6), (4,5), (5,4), (6,3)
Total favorable outcomes:
- Sum 2: 1 outcome
- Sum 3: 2 outcomes
- Sum 4: 3 outcomes
- Sum 5: 4 outcomes
- Sum 6: 5 outcomes
- Sum 7: 6 outcomes
- Sum 8: 5 outcomes
- Sum 9: 4 outcomes
Adding these, we get:
Thus, there are 30 different ways the sum of the two dice can be between 2 and 9, inclusive.
Would you like further details or have any questions? Here are 5 related questions for you:
- How many possible outcomes are there in total when rolling two dice?
- What is the probability of getting a sum between 2 and 9?
- What are the outcomes for a sum of exactly 10 or higher?
- How do we calculate the total probability space for rolling two dice?
- Can you list all outcomes that give an odd sum?
Tip: When calculating probabilities, always divide the favorable outcomes by the total number of possible outcomes to get a fraction.
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Math Problem Analysis
Mathematical Concepts
Probability
Combinatorics
Dice Rolls
Formulas
Sum of outcomes from rolling two dice
Theorems
Probability of event: favorable outcomes/total outcomes
Suitable Grade Level
Grades 6-8