The data for marks in Physics and History obtained by ten students are given below :
Marks in Physics 15 12 8 8 7 7 7 6 5 3 Marks in History 10 25 17 11 13 17 20 13 9 15 Using this data: (i) Find the line of regression in which physics is taken as the independent variable. (ii) A candidate had scored 10 marks in Physics but was absent from the History test.Estimate his probable score for the latter test.
