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Posted by on Saturday, May 1, 2010 at 3:27pm.

You are taking a multiple choice test that has 20 questions with 4 possible answers each. You randoming quess each answer. What is the probality of getting 7 questions correct?

  • Stats - , Saturday, May 1, 2010 at 3:28pm

    4 out of 20. talk to me about this.

  • Stats - , Saturday, May 1, 2010 at 3:31pm

    I do not understand what I need to do here...very confused...would I multiply 20 x 4 to get 80/7?

  • Stats - , Saturday, May 1, 2010 at 5:18pm

    It's not 4 out of 20

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