Suncast Cable offers high definition (HD) cable TV, internet and phone services

Question

Suncast Cable offers high definition (HD) cable TV, internet and phone services to its customers. For these service issues that can be resolved by calling its technical support center. Suncast's goal is to have the problem solved within 30 minutes. In order to determine how well it is achieving this goal, they monitored calls to is technical support center over the last three months. The data compiled 15 shown in the table below. What is the probability that a call to the technical support center involved an issue with internet service? (Round to two decimal places)

Explanation / Answer

probability that a call to the technical center is related to internet services = number of cases with internet / total cases

= (350+122)/(123+115+350+122+77+63)

=   0.555294

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