Problem 17E

In a study concerning a new treatment of a certain disease, two groups of 25 participants in each were followed for five years. Those in one group took the old treatment and those in the other took the new treatment. The theoretical dropout rate for an individual was 50% in both groups over that 5-year period. Let X be the number that dropped out in the first group and Y the number in the second group. Assuming independence where needed, give the sum that equals the probability that Y ≥ X + 2. Hint: What is the distribution of Y − X + 25?

New Media and Civic Discourse – Week 2 of notes Group Think - Social influences are very powerful – social media manufactures the human psychological drives that already existed - Two early studies – interactionism and symbolic interactionism - Interactionism – start to take on characteristics of people around us. EX: The more you hang around certain people you will take on their actions - Symbolic interactionism – coordinating our actions around other people even if we don’t realize it. EX: wearing certain outfits; suddenly everyone starts wearing it – co produce culture but often without communicating or unconsciously Visual culture accents display - Politics of visuals work – theories of subject as a performance –