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Module 1: Trends

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XSIQ
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Core Mathematics - Median smoothing

Median smoothing

Median smoothing

In order to fit a trend line to a time series, the values can be smoothed
by finding the medians of the data. This can be done in cycles of two,
three, four or more.

The sales of bicycles for a particular store are given below:

Smooth the data using a three-year moving median.

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