Consider the following data:

Year (X)	2004	2005	2006	2007	2008	2009	2010
Profit (₹) (y)	114	130	126	144	138	156	164

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

Increase in the number of patients in the hospitals due to heat stroke is:

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:

If $y = 70 + 0.964(x - 2014)$ be a straight line trend fitted by the method of the least squares to the above data, then the trend value for the year 2015 is:

Consider the following data

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

Irregular variations in a time series is :

For the following data:

The equation of the straight line trend is $y = a + b(x_i - 2007)$, then the trend value for the year 2011 is