A computer hardware has a yearly 83% rate of success.?

What is the probability that if you buy four computers, all four computer hardwares will remain successful within a year?

4 Answers

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  • Clive
    Lv 7
    4 weeks ago

    What does this have to do with finance?

  • 1 month ago

    About 10,000 times the probability you will learn ANYTHING in your statistics class if you have to ask Yahoo Answers EVERY question in your homework.

  • 1 month ago

    Only slightly more than 83%, and much less than the answer that whoever wrote this question thought was the answer. They're not independent events. Even though probability theory would indicate only a .17^4 chance that they'd all fail, it's actually much more likely, because it could turn out to be badly designed hardware, or they could all be destroyed by a fire or power surge.

    The way to get the answer that would be marked correct is simple -- raise .83 to the 4th power.

    But that's really the wrong answer in practice.

    • STEVEN F
      Lv 7
      1 month agoReport

      Even if they are not independent, your answer is still BACKWARDS.

  • 1 month ago

    0.83 * 0.83 * 0.83 * 0.83

    = 0.83^4

    = 0.47458

    Answer:

    ~47%

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