Recognize Classification and Regression Problems in Data Mining

question 3

Multiple Choice

Recognize classification and regression problems in data mining.
-Data gathered from home improvement retailers (e.g. Lowe's, Home Depot, etc.) and
Publishing companies (magazines, books, etc.) were merged into one data warehouse.
Suppose data mining is used to determine how much a customer spends annually on
Energy efficient products. In data mining this is referred to as what type of problem?

• A) Regression.
• B) Transactional.
• C) Unsupervised.
• D) Classification.
• E) None of the above.

Recognize non-verbal acknowledgment responses and their importance in communication.

Identify habits and strategies of effective listeners.

Comprehend the impact of cultural differences on listening practices.

Understand the misconceptions and barriers to effective listening.

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Definitions:

General Rule

An established guideline or principle that is generally followed or considered as a norm in a particular field or situation.

Herfindahl Index

A measure used to calculate the level of concentration in a market, by summing the squares of the market shares of each firm.

Greater Than

A mathematical symbol (>) denoting that a value on the left is larger than the value on the right.

Four Firms

Often refers to a concentration ratio in economics that measures the output or revenue share of the four largest firms within an industry.