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    lcc's Avatar
    lcc Posts: 4, Reputation: 1
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    #1

    Apr 17, 2007, 06:06 AM
    Statistics standard deviation and mean
    A test consists of 80 multiple choice questions, each with five possible answers only one of which is correct. What is the mean and standard deviation of the number of correct answers
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #2

    Apr 17, 2007, 06:07 AM
    Hi, if you have a go at all these questions you have posted, then we can help you further, but we cannot and will not do your work for you.
    Look at your notes and see if you can start to do a little of some of them.
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