The ratio of the number of red balls, to yellow balls, to green balls in a urn is 2 : 3 : 4. What is the
probability that a ball chosen at random from the urn is NOT a red ball?
(A) 2/9
(B) 3/9
(C) 4/9
(D) 5/9
(E) 7/9

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adminProbability
The ratio of the number of red balls, to yellow balls, to green balls in a urn is 2 : 3 : 4. What is the probability that a ball chosen at random from the urn is NOT a red ball? (A) 2/9 (B) 3/9 (C) 4/9 (D) 5/9 (E) 7/9