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Two pens are selected at random from a pen stand containing three blue and two black pens. The table and the relative-frequency histogram show the distribution of the number of blue pens chosen. Find the
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Two pens are selected at random from a pen stand containing three blue and two black pens. The table and the relative-frequency histogram show the distribution of the number of blue pens chosen. Find the probability.

User DonSteep
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the probabilty of picking a blue pen is one higher than picking a black pen 
User Shintaro
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