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A Store Plays Background Music on Some Days,randomly Chosen,and None

Question 158

Multiple Choice

A store plays background music on some days,randomly chosen,and none on other days.It compares sales on the two kinds of days.What is the independent variable in this experiment?​


A) The workers in the store
B) ​The volume of sales
C) ​The presence or absence of music
D) ​The variations in weather

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