How Many Class 1's Are Correctly Classified as Class 1

question 2

Multiple Choice

How many Class 1's are correctly classified as Class 1 in the Table below? $$\begin{array} { | l | c | c | } \hline { \text { Confusion Matrix } } \\\hline & { \text { Predicted Class } } \\\hline \text { Actual Class } & \mathbf { 1 } & \mathbf { 0 } \\\hline \mathbf { 1 } & 221 & 100 \\\hline \mathbf { 0 } & 30 & 3,000 \\\hline\end{array}$$ ?

• A)221
• B)100
• C)30
• D)3,000