Q.No.8: (4) The following are the annual profits in thousands of rupees in a certain business: Year 2004 2005 2006 2007 2008 2009 2010 Profit 100 200 300 400 700 9000 1200 (i)Use the method of least -squares to fit a straight trend line and make an estimate of the profits in 2020 (ii) Fit a second degree trend. (iii) Determine which is the better fitting trend. (iv)Draw estimated linear, quadratic and trend line on different pages