Final answer:
Students are likely representative regarding attitudes to public policy on climate change due to their awareness and educational exposure to environmental issues. However, they may not be representative in terms of the brand of mobile phone they use, as choices can be influenced by factors like budget constraints and demographic-specific preferences.
Step-by-step explanation:
Representativeness of students in relation to attitudes to public policy on climate change and their brand of mobile phone can be evaluated through different lenses. For attitudes to public policy on climate change, students may be more concerned and active in supporting initiatives addressing climate issues, as research indicates a growing awareness and concern among the younger population about environmental issues. This, along with educational exposure to the climate data and scientific consensus on climate change, likely makes students a representative demographic in this context.
Regarding their brand of mobile phone, students might not constitute a representative sample of the general population due to factors such as budget constraints, brand preferences specific to younger demographics, or trends that are more prevalent in educational settings. Therefore, the diversity in phone brands among students may be limited by these socio-economic factors, which would make them less representative of the greater population's mobile phone brand choices.