A researcher surveyed 250 households about internet access options. Results are summarized below. If there are 50,000 households in the community, use the data to estimate, in thousand, the difference between the number of households with 'high-speed only' or 'both types' and those with 'dial-up only' or 'no internet.'
| Response | Frequency |
|---|---|
| High-speed only | 100 |
| Dial-up only | 50 |
| Both types | 60 |
| No internet | 40 |
