S1 correlation
Is there a faster way of working out r without a fancy calculator, at the moment I will die before I reach question 5 using the formula?
Original post by TheGreatPumpkin
Is there a faster way of working out r without a fancy calculator, at the moment I will die before I reach question 5 using the formula?
Purchase a calc
The cheapest one that could solve this is 15 pounds in whsmith
By the time you've finished calculating r manually I'd have finished the paper
Original post by MathsSir
What board is this from? Most boards give you Sxy, Sxx and Syy. But this question is worth 3 marks so maybe 2 for Sxx, Syy and Sxy and the final mark for r = Sxy/sqrt(Sxx*Syy)
AQA S1 2009 june, I have worked it out but it took about 10 minutes and that is not a good amount of time to spend on a three mark question.
Original post by TheGreatPumpkin
AQA S1 2009 june, I have worked it out but it took about 10 minutes and that is not a good amount of time to spend on a three mark question.
AQA C2 front cover
Show all necessary working; otherwise marks for method may be lost.
The decision is obviously yours.
Original post by MathsSir
AQA C2 front cover
Show all necessary working; otherwise marks for method may be lost.
The decision is obviously yours.
Show all necessary working; otherwise marks for method may be lost.
The decision is obviously yours.
I'm sorry what do mean? Naturally I will show workings out, but I don't see how it relate to the question.
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