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A bag has 4 red and 6 blue balls. One ball is drawn at random. What is the probability that it is NOT red?
A3/5
B2/5
C4/10
D1/2
Answer & Solution
Correct answer: A. 3/5
P(red) = 4/10 = 2/5. P(not red) = 1 − 2/5 = 3/5.
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