Sunny B.

asked • 04/12/17

there are 12 shirts in your closet, five blue, three green, and four red. You randomly select one to wear. It is blue or green.

there are 12 shirts in your closet, five blue, three green, and four red. You randomly select one to wear. It is blue or green.
this is a question of probability, and i keep thinking it's easy but i keep getting it wrong.

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Sharon G. answered • 04/12/17

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Sunny B.

It's a question of probability. I think i'm getting the question but i keep getting it wrong.
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04/12/17

Sharon G.

If you're looking for the likelihood that you would choose either a green shirt or a blue shirt when you choose, you are thinking of it correctly.
 
You simply create a fraction that has the total number of objects in your set (i.e., 12 shirts) as your denominator, and the number of objects that meet the criteria (either blue or green) as the numerator. So your fraction becomes 5+3/12, or 8/12, or 2/3. There is a 2 in 3 chance that you will choose either a blue or green shirt.
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04/12/17

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