$11\mathrm{.}2$ Cooperative binding data

Obtain Dataset $19.$ The "hemoglobin" file contains one of the data sets shown in Figure $11\mathrm{.}6$a$.$

a$.$ The text suggested that the data could be fit with a function of the form in Equations $11\mathrm{.}9,11\mathrm{.}10,$ or a generalization with some other exponent on $\frac{?}{\text{b}\text{a}\text{r}}(c)($not necessarily an integer$).$ Try guessing such a function, that is$,$ good numerical values of $K_d$ and $n.[$Hint: A $loglog$ plot may help you to make a good guess for $n.]$

b$.$ Now get more systematic, by using a computer $($Mathematica code$)$ to perform least$-$squares fitting. Use your answer in $($a$)$ as an initial guess. Plot the data, the guessed function, and the fit function all on one axes.