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AustraliaVIC
VCE 12 General 2023

4.03 Smoothing with moving median

Interactive practice questions

Consider the following table:

Calculate and fill in the missing values of the table

Time Period Data 3 Point Median
1 $54$54 N/A
2 $45$45 $\editable{}$
3 $50$50 $47$47
4 $\editable{}$ $47$47
5 $42$42 $47$47
6 $48$48 $48$48
7 $49$49 $48$48
8 $43$43 $\editable{}$
9 $48$48 $47$47
10 $47$47 $47$47
11 $39$39 $46$46
12 $46$46 N/A
Easy
1min

Consider the following Time Series Data.

Position each of the $6$6 points provided to create a $3$3 point moving median.

Easy
2min

The Smith family review the money they’ve spent paying for groceries each month in 2015. The results are given in the table below.

Easy
< 1min

Consider the following table:

Easy
1min
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Outcomes

U3.AoS1.28

identify key qualitative features of a time series plot including trend (using smoothing if necessary), seasonality, irregular fluctuations and outliers, and interpret these in the context of the data

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