A B C Class

row $1$ F T $115-$

row $2$ T F $890-$

row $3$ T T $257+$

row $4$ F F $509+$

row $5$ T T $733+$

$1\mathrm{.}1$ How much information about the class would be gained by knowing whether or not the value of feature C is

less than $400?$

$1\mathrm{.}2$ What is the information gain for feature A and B$?$

$1\mathrm{.}3$ Is the above data set preprocessed well for kNN algorithms?