Solve the problem.Suppose you pay $1.00 to roll a fair die with the understanding that you will get back $3.00 for rolling 2 or 1. What is your expected payback?
A. -$2.00
B. $3.00
C. $1.00
D. $0
Answer: D
Mathematics
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B. - 
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C. -2
D. - 
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A. 
B. 
C. 
D. 
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