http://www.boardofstudies.nsw.edu.au/hsc_exams/exam-papers-2007/pdf_doc/gen-maths-07.pdf
Help with Q9 please
Someone explain what this means. Thanks
Help with Q9 please
Someone explain what this means. Thanks
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Sy123
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This is the 2U section, from what I can google:
A relationship between two variables in which both variables move in tandem.
This means that if one variable increases so does the other, if one variable decreases so does the other.
Now applying this knowledge to the question, with a bit of logic we can deduce that the answer is indeed A
Look at D, if we increase dogs that doesnt mean that televisions will increase
Look at C, if we increase training we DECREASE time taken to complete marathon (which is IM guessing negative correlation)
Look at B, if we increase price, less people will buy, hence less will be sold, hence negative correlation
Look at A, although I disagree that such vague assumptions should be done in maths, we can assume that if we INCREASE population, we INCREASE schools at the same time
Hence A
A relationship between two variables in which both variables move in tandem.
This means that if one variable increases so does the other, if one variable decreases so does the other.
Now applying this knowledge to the question, with a bit of logic we can deduce that the answer is indeed A
Look at D, if we increase dogs that doesnt mean that televisions will increase
Look at C, if we increase training we DECREASE time taken to complete marathon (which is IM guessing negative correlation)
Look at B, if we increase price, less people will buy, hence less will be sold, hence negative correlation
Look at A, although I disagree that such vague assumptions should be done in maths, we can assume that if we INCREASE population, we INCREASE schools at the same time
Hence A