A survey reports that 62% of callers to a help desk complain about the service if they think they spoke to a foreign agent, compared to 31% who complain if they think they spoke to a native agent....

A survey reports that 62% of callers to a help desk complain about the service if they think they spoke to a foreign agent, compared to 31% who complain if they think they spoke to a native agent. Suppose that 40% of all calls to service centers are handled by agents in the United States. If a caller complains, what is the probability she was dealing with a foreign agent?