Q2. Write a program to calculate the value of f(x), the values of x and n are determined by user and u is the average of r. For example, 13 x= x [O] + x[1] + x[2], where xi is series of value in data set (x[i]). (10 marks) n n f(x) = { Vx[i] + 2x[i] + " i=1 i=1