To find the 5-year moving average against year 4, we need to follow these steps:
1. Identify the 5-year period ending with year 4. This period includes years 1 to 5.
2. List the annual sales for these 5 years:
- Year 1: ₹ 3.6 '0000
- Year 2: ₹ 4.3 '0000
- Year 3: ₹ 4.3 '0000
- Year 4: ₹ 3.4 '0000
- Year 5: ₹ 4.4 '0000
3. Calculate the average (arithmetic mean) of these annual sales:
- Sum of the sales for the 5 years = 3.6 + 4.3 + 4.3 + 3.4 + 4.4
- Perform the sum: [tex]\(3.6 + 4.3 + 4.3 + 3.4 + 4.4 = 20.0\)[/tex]
4. Divide the sum by the number of years (which is 5):
- [tex]\(\frac{20.0}{5} = 4.0\)[/tex]
Therefore, the 5-year moving average against year 4 is [tex]\( ₹ 4.0 \ '0000 \)[/tex].
