__________ is the step in data mining that includes addressing missing and erroneous data, reducing the number of variables, defining new variables, and data exploration.

A. Data sampling
B. Data partitioning
C. Data preparation
D. Model assessment


Answer: C

Business

You might also like to view...

Suppose the Fed has set the federal funds rate at 4.5 percent using the Taylor rule. If the inflation rate increases by 1 percentage point and the weight on inflation gap is 0.5, all other variables remain unchanged, the federal funds rate should

A. decrease to 3.5 percent. B. decrease to 4 percent. C. increase to 5.5 percent. D. increase to 5 percent.

Business

Describe the stages of change involved in making a highly complex decision

What will be an ideal response?

Business

The better-off test for evaluating whether a particular diversification move is likely to generate added value for shareholders involves assessing whether the move will

A. help each business earn exactly what they were earning before coming under the same corporate umbrella. B. produce a synergistic outcome such that the company's different businesses perform better together than apart and the whole ends up being greater than the sum of the parts. C. make the company better off because it will produce a greater number of core competencies. D. make the company better off by spreading shareholder risks across a greater number of businesses and industries. E. make the company better off by improving its balance sheet strength and credit rating.

Business

Indicate whether each of the following statements about financial statement analysis is true or false.Both dividends and earnings performance are indicators of the value of a company's stock.The most widely quoted measure of a company's earnings performance is return on equity.Earnings per share is calculated for a company's common stock.Investors need to understand that the value of a company's earnings per share is affected by its choices of accounting principles and assumptions.The book value per share measures the market value of a corporation's stock.

What will be an ideal response?

Business