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23 July, 07:40

There are 10 light bulbs in a bag. Two are defective. Select a light bulb. What is the probability of selecting a light bulb that is not defective?

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Answers (2)
  1. 23 July, 10:18
    0
    8 out of ten bulbs are not defective.

    Therefore the probability is 8/10

    This can be simplified to 4/5 or 0.8 or 80%

    - depending on your format
  2. 23 July, 10:23
    0
    The answer would be 8 out of 10
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