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A bag contains 8 yellow cubes,7 blue cubes,and 5 red cubes.If you select a cube at random,what is the probability the cube will not be blue or red

Respuesta :

There are 20 total cubes. 

7/20 + 5/20 = 12/20 = probability that the cube WILL be blue or red. Can be reduced to 3/5

Therefore, the probability that the cube will NOT be blue or red is 8/20 or 2/5.
konrad509

[tex] |\Omega|=20\\
|A|=8\\\\
P(A)=\dfrac{8}{20}=\dfrac{2}{5}=40\% [/tex]

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