Based on the following confusion matrix with a validation set of $100,$ class $1$ reflects the members who purchase additional services and class $0$ reflects the respondents who did not purchase these services. Our model predictions are cross$-$tabulated with these responses in the confusion matrix. With future use of this model, those who are predicted to purchase the services will be targeted with a personalized ad and those not predicted to purchase the services will not be targeted with a personalized ad$.$ Calculate the specificity rate for this model.

$\backslash$table$[[$Actual Class,Predicted Class $1,$Predicted Class $0],[$Class $1,60,8],[$Class $0,14,18]]$

Multiple Choice

$30\mathrm{.}8\%$

$56\mathrm{.}3\%$