If $y = a + b(x - 2022)$ is a straight line trend using the least square method for the following data | Year ($x$) | 2020 | 2021 | 2022 | 2023 | 2024 | |---|---|---|---|---|---| | Profit (Rs. '000) ($y$) | 2 | 3 | 4 | 5 | 2 | Then the value of $\frac{a}{b}$ is:

Let $y_t=a+b(x_i-2021)$ be the straight line trend for the following data by least squares method:

the trend value for the year 2025 approximately is:

If 35, 70, 36, 59, 62 is the given annual time series, then 3-yearly moving averages are

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:

For the given six values 17, 22, 21, 35, 40, 51, the three years moving averages are

A fire in a factory delaying production for some time is:

Consider the following data:

The equation of straight line trend by using least square method is $y = 138.86 + 7.64 (x - 2007)$, then the trend values for the year 2004 is