If a qualitative variable has three categories, how many dummy variables are needed?

A) 0
B) 1
C) 2
D) 3
E) 4

C

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The uniform currency used by the European Union (EU) is called the:

A. euro. B. dollar. C. yen. D. pound.

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A new trend in promotions is the use of technology to replace personal selling

Indicate whether the statement is true or false

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