Smoothing a Time Series Plot Using Moving Medians (VCE SSCE General Mathematics): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the main advantage of moving median smoothing?
What is the main advantage of moving median smoothing?
Works directly with graphs, no exact values
What type of numbers are used for points in median smoothing?
What type of numbers are used for points in median smoothing?
Only odd numbers like 3 or 5
What is the first step in finding a median point graphically?
What is the first step in finding a median point graphically?
Draw vertical line through middle x-value
Where is the median point located in the graphical method?
Where is the median point located in the graphical method?
Where vertical & horizontal lines intersect
What does three-median smoothing use?
What does three-median smoothing use?
Consecutive groups of three data points
How do you move through the data in median smoothing?
How do you move through the data in median smoothing?
Move one point at a time
How does five-median compare to three-median smoothing?
How does five-median compare to three-median smoothing?
Five-median is much smoother
Why does five-median produce a smoother result?
Why does five-median produce a smoother result?
Averaging more points reduces fluctuations
When should you use three-median smoothing?
When should you use three-median smoothing?
To preserve more detail while reducing noise
How many smoothed points compared to original raw data?
How many smoothed points compared to original raw data?
Always fewer smoothed points