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(d) An urban planner obtained the following data from KCC. (15) Year 2001 2002 2003 2004 2005 2006 2007 2008 Investment 10 15 16 16

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(d) An urban planner obtained the following data from KCC. (15) Year 2001 2002 2003 2004 2005 2006 2007 2008 Investment 10 15 16 16 20 22 25 30 Density of 200 220 population 225 230 235 237 240 245 Find the coefficient of correlation between investment and density of population. Test it with 5% level of significance (Need t-table)

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