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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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treyjames1 treyjames1
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2 years ago
AT&T would like to investigate if brand of smartphone and income level are independent variables. The following contingency table shows the number of customers who own three brands of smartphones along with their income level.



The expected number of customers who own Motorola smartphone and earn less than $50,000 is ________.

▸ 12.0

▸ 18.0

▸ 17.5

▸ 40.5
Textbook 
Business Statistics

Business Statistics


Edition: 2nd
Author:
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landonsmomlandonsmom
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