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Welcome to the article A box contains six black pens four blue pens and seven red pens Without looking Clarissa randomly picks a red pen out of the box. On this page, you will learn the essential and logical steps to better understand the topic being discussed. We hope the information provided helps you gain valuable insights and is easy to follow. Let’s begin the discussion!

A box contains six black pens, four blue pens, and seven red pens. Without looking, Clarissa randomly picks a red pen out of the box. If she chooses another pen from the box without replacing the first one, what is the probability that she will pick a red pen both times?

Round your answer to the nearest tenth.

Answer :

Answer:

We start with 17 pens, 7 of which are red.

P(first pen is red) = 7/17

Since this pen is not replaced, we now have 16 pens left, 6 of which are red.

P(second pen is red) = 6/16 = 3/8

P(both pens are red) = (7/17)(3/8) = 21/136 = about 15.4%

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Rewritten by : Brahmana