b) The volume (V) of an extruded polymer accumulated on a build plate through a brass nozzle was measured as a function of time (t) and was recorded as shown in Table Q1b. Time (s) Volume (cm) Table Q1b: Time and volume data 1 1 10 20 2.52 7.16 no 48-5. 30 40 50 13.14 20.24 40.6 i) Use the least square regression to fit the exponential equation that represents the data. ii) Determine the volume when t = 48.5 s iii) Compute the coefficient correlation and comment on the estimate of V(48.5) obtained in part (ii)