sparrklexo
sparrklexo sparrklexo
  • 04-04-2020
  • Mathematics
contestada

Larry rolls 2 fair dice and adds the results from each.
Work out the probability of getting a total less than 8.

Respuesta :

PollyP52 PollyP52
  • 04-04-2020

Answer:

7/12.

Step-by-step explanation:

The total possible outcomes = 6*6 = 36.

Possible outcomes for a total  8 or greater are :

2,6  6,2  3,5   5,3  3,6  6,3   4,4  4,5  5,4  4,6  6,4  5,5,  5,6  6,5  6,6 = 15.

So the number of outcomes for a sum < 8 = 36 - 15 = 21.

Answer is 21/36 = 7/12.

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