Two 6-sided dices are rolled. What is the probability that the sum of the two numbers on the dice will be 5. Show me how you found the answer, please.
2007-02-17 05:22:05 · 4 answers · asked by Clecle 1 in Science & Mathematics ➔ Mathematics
So then ask yourself, how do you get a sum of 5 with two numbers using 1~6?
The answer is 1/9.
Here is how you solve it.
Fist Die, Second Die.
1,4
2,3
3,2
4,2
The total possible outcome? 36.
So the answer is 4/36, which becomes 1/9 when simplified.
2007-02-17 05:28:47 · answer #1 · answered by just ask mee~~!! 2 · 1⤊ 1⤋
You can get a 5 only in the following 4 ways:
1+4, 4+1, 2+3, 3+2.
There are 6*6 possible outcomes.
So probability is 4/36 = 1/9.
2007-02-17 05:34:08 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
You can get a 5 only in the following 4 ways:
1+4, 4+1, 3+2, 2+3
There are 6*6 possible outcomes= 36
So probability is 4/36 = 1/9. simplified
you gotta simplify to keep the teacher sweet!
2007-02-17 07:32:57 · answer #3 · answered by a c 7 · 0⤊ 0⤋
Let the dices be called A and B.
No.of possible outcomes of sum being= 5 when both A and B are rolled together=A1-B4,A2-B3,A3-B2,A4-B1.
Probability=No.of favourable outcomes/Total no. of outcomes
Therefore,
Probability = 1/9 when both are rolled once together.
2007-02-17 05:35:46 · answer #4 · answered by stevieg 2 · 0⤊ 0⤋