Though controversy remains over whether party __________ occurs every 30 to 40 years, political scientists have still identified distinct party eras in the course of American history

While selecting participants for her study, Jamie draws names from a hat to place participants in groups. Once the participant's name has been selected, she does not put it back in the hat. Jamie is using

a. sampling with replacement. b. sampling with duplication. c. sampling without replacement. d. sampling without duplication.

Select a specific impediment to a global policy that might mitigate the consequences of global warming:

a. The costs and benefits of such a policy would be unevenly distributed across many nations. b. Nations that have become wealthy should not be unfairly charged to prevent future emissions. c. Poor nations can best afford the cost of reducing emissions if their IMF debt were forgiven. d. Only large winning coalition nations have an interest in public good emissions reduction