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Line graphs and time series
infoWhy this? Line graphs and time series show how quantities change, allowing us to identify trends, seasonal variation, and unusual fluctuations. Interpreting these patterns supports evidence-based commentary on change and cautious forecasting.
scheduleWhy now? After exploring associations between variables, we apply our graphical and interpretative skills to observations ordered in time. This shifts attention to patterns of change and prepares us to measure relative change using index numbers.
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