Two number cubes are rolled and the first cube shows a 3. Find the probability that you obtain a sum of 7?

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Two number cubes are rolled and the first cube shows a 3. Find the probability that you obtain a sum of 7?

2007-02-27 09:48:02 · 3 answers · asked by NUMBA 85 1 in Education & Reference ➔ Homework Help

3 answers

You need a 4. You have 6 equal possibilities. One of them is correct, five are false. Therefore the correct against the false are 1 : 5.

2007-02-27 10:01:06 · answer #1 · answered by corleone 6 · 0⤊ 0⤋

The house wins, they always do, that is why gambling is legal. Tax $ the easy way or the hard way. If first was a 3, that would be the easy way. 1 in 6 on a cube with the same numerical representations.

2007-02-27 09:58:17 · answer #2 · answered by Anonymous · 0⤊ 2⤋

You need a 4 there are six possibilities and one 4, therefore probability = 1/6

2007-02-27 09:55:21 · answer #3 · answered by bob_whelan1944 3 · 1⤊ 0⤋