Multiple Choice
A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers. 
Based on the data above what is the expected value for the "under 21 and regularly use text messaging" cell?
A) 82
B) 50
C) 120
D) 58
Correct Answer:
Verified
Correct Answer:
Verified
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