Posted by **James** on Wednesday, June 27, 2012 at 2:37pm.

A firm has 30% of its service calls made by a contractor, and 15% of these calls result in customer complaints. The other 70% of the service calls are made by their own employees, and these calls have a 5% complaint rate. Use Bayesâ€™ theorem to find the probability that a complaint was from a customer whose service was provided by their own employees.

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