A box contains 4 plain pencils and 4 pens. A second box contains 5 color pencils and 3 crayons. One | MathCelebrity Forum

A box contains 4 plain pencils and 4 pens. A second box contains 5 color pencils and 3 crayons. One

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A box contains 4 plain pencils and 4 pens. A second box contains 5 color pencils and 3 crayons. One item from each box is chosen at random. What is the probability that a pen from the first box and a crayon from the second box are selected?

  • First box, P(pen) = 4/8 = 1/2 = 0.5
  • Second box, P(crayon) = 3/8

Since each event is independent, we have:
P(Pen from Box 1) * P(Crayon from Box 2) = 1/2 * 3/8 = 3/16 or 0.1875
 
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