(a) Shortly explain "forecasting" and "Forecasting error." State the different types of forecasting. (b) You are given with the following data:
Year: 2007 2008 2010 2009 2011 2012 2013 2015 2014 2016
Sales: 1800 1700 1650 1550 1440 1360 1300 1250 1200 1100 (in lac TK)
What will be predicted sales for 2017?
