Trend lines (AQA GCSE Statistics): Flashcards
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Practise the cards
10 cards from this deck
What is a trend line in a time series graph?
What is a trend line in a time series graph?
A line showing the general direction of data over time.
How do you identify a rising trend?
How do you identify a rising trend?
Data points generally increase over time despite fluctuations.
What indicates a falling trend in data?
What indicates a falling trend in data?
Overall data points decrease over time with some rises.
Describe a level trend in data.
Describe a level trend in data.
Data remains roughly constant with no clear increase or decrease.
What is the method for drawing a trend line?
What is the method for drawing a trend line?
Draw a line that best fits the data points' overall trend.
What should you avoid when drawing trend lines?
What should you avoid when drawing trend lines?
Don't make the line too steep or pass through all points.
How to interpret a rising trend line?
How to interpret a rising trend line?
Indicates an increase in the variable being measured over time.
What is a common exam trap with trend lines?
What is a common exam trap with trend lines?
Focusing on individual points instead of the overall trend.
What is the first step in trend line problem-solving?
What is the first step in trend line problem-solving?
Read the question and identify what the data represents.
Why is context important in trend line analysis?
Why is context important in trend line analysis?
It helps explain what the trend means in real-world terms.