If $y = 38.85 +7.64(x-2020)$ is the equation of the straight line trend for the following data:
The trend value for the year 2021 by least square method is : |
45.6 46.49 38.9 42.6 |
46.49 |
The correct answer is Option (2) → 46.49 Given trend line $y=38.85+7.64(x-2020)$ For year $2021$, $x-2020=1$ So $y=38.85+7.64(1)$ $=38.85+7.64$ $=46.49$ Trend value for year 2021 is $46.49$ |