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

For a certain data $(x_i, y_i)$, $i = 1,2,...,7$: $\sum_{i=1}^{7} y_i = 246$ and $\sum_{i=1}^{7} u_iy_i = 29$, $\sum_{i=1}^{7} u_i^2 = 28$ where $u_i = x_i - 2004$, then straight line trend by the method of least square is :

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:

In the month of January, the number of cases diagnosed of influenza epidemic are given in the following table

The 3-day moving averages are:

If $y = a + b(x - 2022)$ is a straight line trend using the least square method for the following data

Then the value of $\frac{a}{b}$ is:

Match List-I with List-II

Choose the correct answer from the options given below:

Match List-I with List-II

Choose the correct answer from the options given below: