tinahunter513
tinahunter513 tinahunter513
  • 23-01-2016
  • Mathematics
contestada

You are rolling two dice at the same time. What is the probability of rolling a sum of 5 or 9?

Respuesta :

Hippalectryon
Hippalectryon Hippalectryon
  • 23-01-2016
You can get a 5 by rolling :
1 and 4
2 and 3
3 and 2
4 and 1

You can get a 9 by rolling :
3 and 6
4 and 5
5 and 4
6 and 3

There are 36 possible outcomes, hence your probability is [tex]\frac{4\cdot2}{36}=\boxed{\frac29}[/tex]
Answer Link
kingnate333
kingnate333 kingnate333
  • 21-03-2019

Answer:

C

Step-by-step explanation:

To find the probability we use the mutually exclusive probability formula P(A) + P(B). The probability of getting a sum of 5 is  

1 /9

and the probability of getting a sum of 9 is  

1 /9

. The sum is  

2 /9

Answer Link

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