Question $4(2$ pts$)$: You are asked to classify cancer cases as either benign

or malignant. Now, think about the cost$-$sensitive classification, i$.$e$.,$ making an

error for one class is more costly than making an error in predicting the other.

Answer the following two sub$-$questions:

Question $4\mathrm{.}1(1$ pt$).$ In this case of cancer classification, which kind of

misclassification is more costly to patients? Note that $$cost$$ here refers to not

just financial cost but cost to the patients in general.

Question $4\mathrm{.}2(1$ pt$).$ Suppose you can control the probability cutoff value for

classifying a case as "malignant", should you increase or decrease that cutoff, in

order to reduce overall misclassification cost? Explain your answer in $1-2$

sentences.