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Suppose that a jar contains 4 pens: 2 black, 1 blue, and 1 red. three people select a pen at random from the jar, sign a document, and replace the pen in the jar before the next person selects a pen. what is the probability that none of the people use the red pen to sign the document?

User Rmckeown
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1 Answer

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Haven’t done these kinds in a while, but Im sure it’s 75% (based on common sense) plz correct me if I’m wrong but maybe it’s .25 or 1/4 x 3 people it doesn’t not make sense so 75% is the awnser
User Asad Durrani
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