Protecting what is added to your digital footprint is important because potentially embarrassing information can remain on-line

until removed
up to 6 months
forever
until it is forgotten

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

China white was the black market selling of ivory, in which the profit was redistributed back into the trafficking of heroin.

According to the graph, how much did individuals making $20,000 to $50,000 a year pay in income taxes? according to the graph, how much revenue did the government receive from individuals earning $200,000 and above?