Based on the data available for the production ($y_i$ in thousand tons) of a cloth factory for 7 years ($x_i$) using the method of least squares, the straight line trend is given by $y - a + bx$ with $\sum y_i = 608, \sum x_i = 0, \sum x_iy_i = 116, \sum x_i^2 = 28$. Then, the increase in production per year is:

When data of the variable is collected at distinct time intervals for a specified period of time, it is called

The break-even point is the level of production where

Observe the following table:

If the three-year moving averages of the above observations are A, B, C, D respectively, then the largest value of the three-year moving averages is :

Match List-I with List-II

Choose the correct answer from the options given below:

Consider the following data:

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

Match the LIST-I with LIST-II

Choose the correct answer from the options given below: