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When rolling 2 6 sided number cubes, what are the chances the sum of the roll will be 7

2 Answers

2 votes

Answer: 1. 5/8

2. 1/2

3. 1/6

4. 31/147

5. -drawing a red card from a deck of cards

-choosing a math student in a group of students

-rolling a number greater than 2 on a 6-sided number cube

Explanation: I took the same quick check and got 100%, hope it helps!

User Stalinko
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6.3k points
5 votes

Answer:


Explanation:

For each of the possible outcomes add the numbers on the two dice and count how many times this sum is 7. If you do so you will find that the sum is 7 for 6 of the possible outcomes. Thus the sum is a 7 in 6 of the 36 outcomes and hence the probability of rolling a 7 is 6/36 = 1/6.

User Boris Zagoruiko
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5.1k points