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    I have a Casio fx-991ES PLUS calculator and am looking for a way to get it to calculate stat coefficients for me.

    I can get it into Stat Mode, and then type in the relevant data, but from there, how do I get the value of:

    a) r, the PMCC
    b) rs, Spearman's rank coefficient
    c) the coefficients a and b for the regression line of y on x (such that y=a-bx)
    d) the coefficients c and d for the regression line of x on y (such that x=c-dy)

    Thanks

    Edit: a) and c) have been answered. b) and d) still unanswered.
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    (Original post by Big-Daddy)
    I have a Casio fx-991ES PLUS calculator and am looking for a way to get it to calculate stat coefficients for me.

    I can get it into Stat Mode, and then type in the relevant data, but from there, how do I get the value of:

    a) r, the PMCC
    b) rs, Spearman's rank coefficient
    c) the coefficients a and b for the regression line of y on x (such that y=a-bx)
    d) the coefficients c and d for the regression line of x on y (such that x=c-dy)

    Thanks
    i have just started a stats module, i have a Casio also so it should be pretty similar although i can only help with the points for a and c. Once you have gone into stats mode on the calculator and A+BX, put in your data values and then press AC, the values will be kept in the memory of the calculator, then press shift and the |-STAT-| button (where the number 1 button is)
    pressing 2)data will bring the table back up
    Selecting 'reg' will give you options for r, the pmcc, A and B also for the line

    i am honestly not sure about find rs, but maybe you can reverse the table values and change the x and y in the table (it might be tedious though) to find the c and d value you are looking for? sorry it is just an idea
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    (Original post by callous-b)
    i have just started a stats module, i have a Casio also so it should be pretty similar although i can only help with the points for a and c. Once you have gone into stats mode on the calculator and A+BX, put in your data values and then press AC, the values will be kept in the memory of the calculator, then press shift and the |-STAT-| button (where the number 1 button is)
    pressing 2)data will bring the table back up
    Selecting 'reg' will give you options for r, the pmcc, A and B also for the line

    i am honestly not sure about find rs, but maybe you can reverse the table values and change the x and y in the table (it might be tedious though) to find the c and d value you are looking for? sorry it is just an idea
    Thank you, that's a good start. We've got a) and c). By the way are you sure r is PMCC rather than Spearman's rank? I'm worried about the notation the calculator might be using ... (I think we can assume it will be the same between our Casios)
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    (Original post by Big-Daddy)
    ...
    Here's your manual. Regression is on page 52.
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    (Original post by Mr M)
    Here's your manual. Regression is on page 52.
    Thank you.

    Could you have a look at my stats question thread? There are a few things I'm unclear on.

    http://www.thestudentroom.co.uk/show....php?t=2310296
 
 
 
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