Please refer to the $\text{'}0\text{'}$ and $\text{'}1\text{'}$ classification example to answer this question. Mary developed a classifier to detect cat from dog images. She used the average distance of the eyes to the nose as an attribute representing each image sample. She is planning to develop the following classifier:

If attribute$>$threshold

image $=>$ dog

else

image $=>$cat.

To determine the parameter of her classifier $($i$.$e$.,$ threshold$),$ Mary changed the threshold value from $0$ to $60$ and plotted the following figure. Select the incorrect statement.