ryannuminen
ryannuminen ryannuminen
  • 14-03-2018
  • Mathematics
contestada

Two number cubes are rolled. What is the probability that the sum of the numbers rolled is either 3 or 9?
A.1/6
B.1/13
C.1/18
D.1/162

Respuesta :

konrad509
konrad509 konrad509
  • 17-07-2018

[tex] |\Omega|=6^2=36\\
|A|=\underbrace{2}_{\text{the sum is 3}}+\underbrace{4}_{\text{the sum is 9}}=6\\\\
P(A)=\dfrac{6}{36}=\dfrac{1}{6}\approx17\% [/tex]

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