What is the probability of getting a sum 9 from two throws of a dice?
Question
What is the probability of getting a sum 9 from two throws of a dice?
Solution
To calculate the probability of getting a sum of 9 from two throws of a dice, we first need to determine the total number of outcomes. Since a dice has 6 faces, the total number of outcomes from two throws is 6*6 = 36.
Next, we need to find out the number of outcomes that give a sum of 9. They are (3,6), (4,5), (5,4), (6,3). So there are 4 such outcomes.
The probability of an event is given by the number of favorable outcomes divided by the total number of outcomes. So, the probability of getting a sum of 9 from two throws of a dice is 4/36 = 1/9.
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