Variations in a time series (AQA GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What term describes the overall direction of data trends over time?
What term describes the overall direction of data trends over time?
Trend line
What are seasonal variations?
What are seasonal variations?
Repeating patterns
How do you calculate variations?
How do you calculate variations?
Actual value - Trend value
What do positive variations indicate?
What do positive variations indicate?
Higher than trend
What is a key feature of seasonal variations?
What is a key feature of seasonal variations?
Repeat at intervals
What does a trend line represent?
What does a trend line represent?
General direction
In the gas bill example, when are bills higher?
In the gas bill example, when are bills higher?
Winter months
What type of variation occurs in summer quarters?
What type of variation occurs in summer quarters?
Negative
Why are seasonal variations important?
Why are seasonal variations important?
They help in forecasting
Why is it essential to analyze seasonal variations in data?
Why is it essential to analyze seasonal variations in data?
To identify trends and patterns