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How many significant figures would the solution to the following problem have?    

How would the value of 0.000381 g be represented in scientific notation?

31. Studying the effect of increased income can be difficult because purposive social experiments are often not possible. However, your textbook notes a set of natural experiments on the effect of income, which were analyzed by economists, including Imbens, Rubin, and Sacerdote. In these studies, an increase in income came from  

1. Thinkers of the Scottish Enlightenment, such as Adam Ferguson and John Millar, believed that private property was a beneficial institution. What was their reasoning?  

35. Barack Obama is widely understood to be the first African American elected as president of the United States, even though his birth mother was White. This demonstrates the concept of __________        in the United States.  

CONGRATS! You’ve finished the second midterm assessment. Way to go, friend. You’ve earned yourself a break – and also a snack like this happy quokka! Link to a National Geographic video about the Australian quokka (1 min. 48 sec.) More fun facts about the quokka can be found here.  

49. A sociologist and biologist work together to investigate possible epigenetic marks for cancer. In the case of Lily, a cancer patient, they are looking at both her genes and  

20. Students at the high school decided to pool their money to buy winter clothes for the city’s homeless population. They didn’t benefit from this action individually, but their city was better off for it. Each student was engaging in  

7. Alma works in a factory that produces computer screens. Her task is to press a button that ensures that one small piece of plastic is cut in the appropriate shape and size. Alma does not know anything about the rest of the production process. She is paid minimum wage and has never been able to afford a computer of her own. She also does not feel like her work allows her any creativity. Alma’s position in a capitalist system is best described by the theories of  

19. Karim is working with local nonprofits to study potential interventions to alleviate poverty in an immigrant enclave neighborhood in Boston. In his report, he employs Mario Luis Small’s idea of “culture as frames” instead of Oscar Lewis’s “culture of poverty” because the “culture of poverty” thesis