Mary has 3 red balls, 2 blue balls and 1 yellow ball. If she will pick one ball randomly, what is the probability of getting a red ball?
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0.1
0.2
0.5
0.3
The probability of picking a red ball is 3 out of 6 total balls. Therefore, the probability is 3/6, which simplifies to 0.5.
So the correct answer is 0.5.