1) A classification model's misclassification rate on the validation set is a better measure of the model's predictive ability on new data than its misclassification rate on the training set.( true or false? why?)
2) When selecting among competing prediction models, you need to trade off the model fit against model bias with an independent validation data sample.( true or false? why?)
3) Which of the following tasks can you perform using the Explore window in SAS Enterprise Miner?
a. Examine a table of the values of each variable in your data source.
b. View a scatter plot, bar chart, or pie chart of the values in your data source.
c. Use histograms to visually explore relationships between the variables in your data source.
d. All of the above