CUET Preparation Today
Based on the following data, answer the question where all symbols have their usual meaning.
If $y_t=a+b(t-2003)$ is the trend line equation then a is equal to : |
3 6 5 2 |
6 |
The correct answer is Option (2) → 6 The trend line equation is, $y_t=a+b(t-2003)$ $a=\bar y=\frac{∑y}{n}=\frac{5+6+6+8+5}{5}=\frac{30}{5}=6$ |
