Question: An economic research centre has published data on GDP and Demand for refrigerators as given below: Year 2011 2012 2013 2014 2015 2016 2017 GDP
An economic research centre has published data on GDP and Demand for refrigerators as
given below:
Year 2011 2012 2013 2014 2015 2016 2017
GDP (billion) 20 22 25 27 30 33 35
Refrigerator 50 60 80 80 90 100 120
(a) Estimate regression equation R= a+by, where R= No of refrigerator sold and Y= GDP.
Forecast demand for refrigerator in the year 2018 and 2019. The research centre has projected
GDP for 2018 and 2019 at Rs. 38 billion and Rs. 40 billion respectively.
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