Which of the following sentences is true?

True or false. We can use R2 score for this dataset setting "mass" as the target column

Which naive bayes model will get better accuracy score?

For this dataset with "class"set as the target column, we can never use.....

which of the following Ks gets the best accuracy score?

After applying the default train test split. What is the number of shape of training data

True or false. All the features are numerical

number of rows of the features is

the shape of Y column is ......