you have fit at least 2 equations (i) linear (ii) 2 of non-linear: either 2nd or 3rd order polynomial or log or exponent

[answerhappygod]

you have fit at least 2 equations (i) linear (ii) 2 of non-linear: either 2nd or 3rd order polynomial or log or exponential fit etc. You can try fitting these equations using excel as shown in the lab. You need to get the same coefficients of fit from calculations using the least square method. In the assignment, you have to present so steps that are involved the least square method.