Algebra 1

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On a multiple choice test with 10 questions and 5 choices, A,B,C,D,E, for each questions, what are the odds of guessing on all 10 questions and getting 100%. State your answer as a common fraction.

  • Algebra 1 -

    the prob of getting all 5 correct is
    = (1/10)^5 or
    = 1/100,000
    so the prob of NOT getting all 5 correct
    = 1 - 1/100,000 = 99999/100,000

    so the odds in favour of getting all 5 correct is
    1 : 99,999

  • Algebra 1 -

    And I think you answered my question last time i posted, so thanks for keep on rollin'

  • Algebra 1 -


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