Free points have a good day

True or false: a fitted model with more predictors will necessarily have a lower training set error than a model with fewer predictors.

The basic difference between macroeconomics and microeconomics is that: a. microeconomics looks at the forest (aggregate markets) while macroeconomics looks at the trees (individual markets). b. macroeconomics is concerned with groups of individuals while microeconomics is concerned with single countries. c. microeconomics is concerned with the trees (individual markets) while macroeconomics is concerned with the forest (aggregate markets). d. macroeconomics is concerned with generalization while microeconomics is concerned with specialization.

Vincent enjoys investing his money in ways that can generate a return. he realizes that also a chance that his investment will decrease in value. this chance is known as a. opportunity cost b. risk c. recession d. deterioration