A social researcher investigated whether there is an association between a person's age category and their primary source of news. The observed frequencies are shown in the table below:
| Age Category | Social Media | Television | Print Newspapers |
|---|---|---|---|
| 18–34 | 85 | 15 | 5 |
| 35–54 | 40 | 45 | 15 |
| 55 and over | 10 | 60 | 30 |
Calculate the degrees of freedom for use with the Chi-square (χ2\chi^2χ2) test in this study. Show your workings.
