An Internet and cable-television supplier surveyed a random sample of their customers. The results are shown in the table.

Satisfaction of Internet and Cable-Television Customers

\begin{tabular}{|c|c|c|c|}
\hline
& Satisfied & Not satisfied & Total \\
\hline
Internet & 1,820 & 212 & 2,032 \\
\hline
Cable television & 824 & 285 & 1,109 \\
\hline
Total & 2,644 & 497 & 3,141 \\
\hline
\end{tabular}

Which statement about the two-way frequency table is true?

A. About one-fourth of the customers are not satisfied.

B. The survey represents a random sample of the population.

C. There is a greater percentage of Internet customers who are not satisfied than cable television customers who are not satisfied.



Answer :

To determine which statement about the two-way frequency table is true, let's calculate the percentages of dissatisfaction for both internet and cable television customers.

### Step-by-Step Solution:

1. Identify the Total Number of Customers for Each Service:
- Internet:
- Satisfied customers: 1,820
- Not satisfied customers: 212
- Total customers for internet: [tex]\( 1,820 + 212 = 2,032 \)[/tex]

- Cable Television:
- Satisfied customers: 824
- Not satisfied customers: 285
- Total customers for cable television: [tex]\( 824 + 285 = 1,109 \)[/tex]

2. Calculate the Percentage of Customers Who Are Not Satisfied for Each Service:
- Internet:
- Number of not satisfied customers: 212
- Total number of internet customers: 2,032
- Percentage of not satisfied customers:
[tex]\[ \left( \frac{212}{2,032} \right) \times 100 \approx 10.43\% \][/tex]

- Cable Television:
- Number of not satisfied customers: 285
- Total number of cable television customers: 1,109
- Percentage of not satisfied customers:
[tex]\[ \left( \frac{285}{1,109} \right) \times 100 \approx 25.70\% \][/tex]

3. Compare the Percentages:
- The percentage of internet customers who are not satisfied is approximately 10.43%.
- The percentage of cable television customers who are not satisfied is approximately 25.70%.

### Conclusion:
Given the percentages calculated above, the correct statement is:
[tex]\[ \boxed{\text{There is a greater percentage of cable television customers who are not satisfied than internet customers who are not satisfied.}} \][/tex]