Smoothing a time series using moving means
Investigating and modelling time series
General Maths Units 3 and 4 2023+
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VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at www.vcaa.vic.edu.au
Chapters

Introduction
RECAP: Finding the mean of some data
Example
Example 2
Plotting raw data on the CAS
Two-mean smoothing with centring
Example 3
Example 4
VCAA Question
VCAA Question
VCAA Question
Summary
Description

This is the second video in a series of 5 which looks at Time Series for the Further Maths Units 3 and 4 course. To be able to find trends in data it makes sense to smooth the random fluctuations. This can be done in a number of ways. The first I look at is through mean smoothing. I look at both odd numbers of data and even numbers of data items using examples for each. I conclude the video, like all others, by solving some VCAA questions which relate directly to this content area.
Video tags

vce maths Smoothing a time series using moving means further maths year 12 further vce further further units 3 and 4 further 3 and 4 time series moving means smoothing using moving means how to I do moving means three moving means five moving means two moving means with centring