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3 years ago

5

What is the probability that you would obtain a sum of 7 or a sum of 11 on the first roll? (Rolling two dice.)

1 answer:

crimeas [40]3 years ago

5 0

Answer:

2/9

Step-by-step explanation:

Total outcome = 36

Sum of 7 = 6

Prob of sum of 7 = 6/36

Sum of 11 = 2

Prob of sum of 11 = 2/36

Prob of sum of 7 or 11 = 6/36+2/36

Prob of sum of 7 or 11 = (6+2)/36

Prob of sum of 7 or 11 = 8/36 = 2/9

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