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 :

The rise in prices of vegetables due to flood is an example of

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

Consider the following data:

Using method of least squares, the trend value for year 2004 will be

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

In reference to the above data, which of the following statements are correct? (where $x = t - 2013$)

(A) If the equation of the straight line trend is $y = 12 + 2.29 x$, then the trend value for the year 2017 is 21.16.

(B) If the equation of the straight line trend is $y = 12 + 2.29 x$, then the trend value for the year 2013 is 11.

(C) If the equation of the straight line trend is $y = 12 + 2.29 x$, then the trend value for the year 2015 is 17.

(D) If $(t_1, y_2),(t_2, y_2),(t_3, y_3),......,(t_n, y_n)$ denote the time series and $y_t$ are the trend values of the variable y, then $\sum(y - y_t) = 0$.

Choose the correct answer from the options given below:

The sale of ice creams is higher in summer than in winter is an example of