The following table shows the quarterly sales (RM'000) for Afeef Café for the past 3 years. Quarter Year 1 11 2 3 4 2019 2020 2021 17 10 18 19 24 17 29 23 38 31 33 Based on the above data, (a) Calculate the trend values using moving average method (correct to 3 decimal places).

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The following table shows the quarterly sales (RM'000) for Afeef Café for the past 3 years.
Quarter
Year
1
2
4
2019
11
17
10
18
2020
19
24
17
29
2021
23
38
31
33
Based on the above data,
(a)
Calculate the trend values using moving average method (correct to 3 decimal
places).
Transcribed Image Text:The following table shows the quarterly sales (RM'000) for Afeef Café for the past 3 years. Quarter Year 1 2 4 2019 11 17 10 18 2020 19 24 17 29 2021 23 38 31 33 Based on the above data, (a) Calculate the trend values using moving average method (correct to 3 decimal places).
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