244) All of the following are true about data mining except which?
A) Because some of the information found on the Internet is factually incorrect, consumer
profiles contain errors.
B) Personal, private data on most Americans is available on the Internet.
C) It is easy for others to find out your personal information through both online and offline
sources.
D) Businesses are required to inform consumers when they obtain their personal data.
E) Many firms obtain consumer data by placing cookies on a person’s computer or use tracking
apps on a user’s mobile phone.
245) Even though primary data can be especially valuable to an individual firm, secondary data
are often used because
A) secondary data are much more up-to-date and tailored to a specific firm or industry.
B) secondary data, although far more expensive, are also much more reliable.
C) primary data are usually more costly and time-consuming to collect.
D) primary data can be accessed by virtually anyone so the information generated loses much of
its value.
E) primary data are less fact and figure based; they are more subjective and therefore more
vulnerable to misinterpretation.