3.3. A woody tree was planted in 2010 and allowed to grow for seven years. When the tree was cut down, the width of the early and late wood in each annual (year) ring was measured to determine the secondary growth. Study the data in the table below and answer the questions that follow. Width of Time wood (mm) Early wood Late wood Annual ring 2010 2011 2012 2013 2014 2015 2016 3,5 6,0 4,5 13,0 6,0 8.5 7,0 3,0 4,5 1,5 8,5 3,0 4,0 3,5 6,5 10,5 6,0 21,5 9,0 12,5 10,5 3.3.1. Calculate the average annual secondary growth for the period 2010 to 2016.
