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Math Help - help with a problem

  1. #1
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    help with a problem

    from the table x = 1,2,3,4 and y= -1/4, -1/2, -3/4 and ? ( in table format)

    X Y
    1 ( -1/4)
    2 ( -1/2)
    3 ( -3/4)
    4 ( ?)

    1. would the correlation between x and y be positive or negative?

    2. what is the missing value of x?

    3. how would the values of this table be intrepreted in terms of linear regression?

    4. if a 'line of best fit' is placed among these points plotted on a coordinate system, would the slope be positive or negative?

    Please help!!
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  2. #2
    Master Of Puppets
    pickslides's Avatar
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    Have you plotted the points using a scatterplot?

    I would say the correlation is negative and do you mean the missing y-value?
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  3. #3
    Flow Master
    mr fantastic's Avatar
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    Quote Originally Posted by rocky2011 View Post
    from the table x = 1,2,3,4 and y= -1/4, -1/2, -3/4 and ? ( in table format)

    X Y
    1 ( -1/4)
    2 ( -1/2)
    3 ( -3/4)
    4 ( ?)

    1. would the correlation between x and y be positive or negative?

    2. what is the missing value of x?

    3. how would the values of this table be intrepreted in terms of linear regression?

    4. if a 'line of best fit' is placed among these points plotted on a coordinate system, would the slope be positive or negative?

    Please help!!
    Have you reviewed your class notes on how to do these things? What thoughts have you had? Where are you stuck? Are you using technology to do the linear regression?
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