Please enter your initials here _Jm (3) 4. A research company summarized the average time spent every day by teenagers on the phone. The scatter plot is shown below. 55 SO 45 Time (min) 40 35 30 25 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 Year (a) Use the above graph to interpolate the average amount of time spent on the phone in 2006. (b) In what year(s) did teenagers spend around 42 minutes on the phone? BONUS (1 mark) Consider the curve of best fit for the cubic regression in question 4. Do you think the curve of best fit is reasonable for extrapolationg values? Explain. Page 5 of 5