The 3 years moving averages for the following observations are :
| Year | 2019 | 2020 | 2021 | 2022 |
| Sale (in lakhs) | 4 | 3 | 5 | 7 |
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 4, 5
Computing 3 year moving averages,
for year 2020,
Moving average = $\frac{4+3+5}{3}=\frac{12}{3}=4$
for year 2021,
Moving average = $\frac{3+5+7}{3}=\frac{15}{3}=5$