Find the probability.The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency table below summarizes the results.
If a customer is selected at random, what is the probability that the waiting time is at least 12 minutes or between 8 and 15 minutes? Round your answer to three decimal places.
A. 0.091
B. 0.731
C. 0.509
D. 0.6
Answer: C
Mathematics
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A. 
?
B. 
?
C. 
?
D. 
?
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