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Which of the following(s) (is)are accepted as data reduction?   I    decreasing number of variables II   decreasing number of  records III  forming linear combiniation of existing features to create new features   a. only I b. only II c. only I and II d. I, ıI and III

Which of the following(s) (is)are accepted as data reduction?   I    decreasing number of variables II   decreasing number of  records III  forming linear combiniation of existing features to create new features   a. only I b. only II c. only I and II d. I, ıI and III

Database Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
11th Edition
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Chapter3: The Relational Database Model
Section: Chapter Questions
Problem 23RQ: What would be the conceptual view of the INDEX table described in Question 26? Depict the contents...
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Which of the following(s) (is)are accepted as data reduction?

 

I    decreasing number of variables

II   decreasing number of  records

III  forming linear combiniation of existing features to create new features

 

a.

only I

b.

only II

c.

only I and II

d.

I, ıI and III

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