For the given values 8, 10, 12, 14, 16; the three-year moving averages are:

Which of the following are components of a time series ?

(A) Irregular component

(B) Cyclical component

(C) Chronological Component

(D) Trend Component

Choose the correct answer from the options given below :

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

Consider the following data:

By using the method of least squares, the trend value for 1997 is :

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:

Consider the following data

The equation of straight line trend by method of least square for the above data is given by

For the given five values, 16,25,19,34,43, the three year moving averages are