VCE Stuff > VCE General & Further Mathematics
VCE General & Further Maths Question Thread!
Lucho23:
Hey,
Can you please explain clearly how to identify and what is a seasonalised and cyclic trend? I sort of get it, but I'm still a bit confused.
Daenerys Targaryen:
For seasonal, it reappears every Q4. Therefore if there is a max at Q1, then a max will occur at each Q4 after. Eg. Q1, Q5, Q9
Cyclic has peaks etc but it doesnt always follow the same pattern.
An example a teacher use to tell us was:
Seasonal- ice cream sales; they would peak during summer
cyclic; apple company; they release a product, lots of people buy it, they wait until there are less sales, then release their next product
Yacoubb:
--- Quote from: HatersGonnaHate on March 16, 2013, 04:28:34 pm ---For seasonal, it reappears every Q4. Therefore if there is a max at Q1, then a max will occur at each Q4 after. Eg. Q1, Q5, Q9
Cyclic has peaks etc but it doesnt always follow the same pattern.
An example a teacher use to tell us was:
Seasonal- ice cream sales; they would peak during summer
cyclic; apple company; they release a product, lots of people buy it, they wait until there are less sales, then release their next product
--- End quote ---
Does it have to be every Q4? Because if you were investigating a 36-month period, it could be at every 12th month, or, end of every year, a trough would exist..
Daenerys Targaryen:
Well as long as it reoccurs at the same period
Yacoubb:
--- Quote from: HatersGonnaHate on March 16, 2013, 05:14:13 pm ---Well as long as it reoccurs at the same period
--- End quote ---
Yeah I thought so :) Thanks for the clarification. Luckily my school has divided the core into 3 SACS
Sac 1 - Univariate Data
Sac 2 - Regression + Data Transformations
Sac 3 - Time Series
:) Makes the workload so much easier in terms of studying for the SAC. Then again, the modules aren't exactly long + so its best to do them in that form.
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