[Step-by-Step] The manager of a Mid-First Bank branch recorded the amount of time each customer spent waiting in line during peak business hours one Monday.
Question: The manager of a Mid-First Bank branch 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 we randomly select one of the customers represented in the table, what is the probability that the waiting time will be at least 12 minutes or between 8 and 15 minutes?
Deliverable: Word Document 
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