A cable supplier company offers high definition cable TV, Internet and phone ser
ID: 2930011 • Letter: A
Question
A cable supplier company offers high definition cable TV, Internet and phone services to its clients. They promise the clients to solve the problems within 20 minutes after calling by its technical support center. They recorded the last three months data from the technical support center to measure how much they can reach this goal. The data is in the table below.
Cable TV
Internet
Phone
Solved Problems
131
358
85
Not Solved Problems
123
130
71
What is the probability that a call to the technical support center involved an issue with Internet service?
Cable TV
Internet
Phone
Solved Problems
131
358
85
Not Solved Problems
123
130
71
Explanation / Answer
P(Issues with internet) = (358+130) / Total
Total = 131+123+358+130+85+71 = 898
P(Issues with internet) = 488/898 = 0.5434 (Answer)
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