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Question 3 4 pts Customers at a convenience store spend an average of $14 with a standard deviation of $20. What is the standard deviation

Question 3 4 pts Customers at a convenience store spend an average of $14 with a standard deviation of $20. What is the standard deviation of the average amount that a random sample of 400 customers spends? $1 O $20 $0.70 $0.05 D Question 4 8 pts

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