Answers: 3
Mathematics, 22.06.2019 02:30
Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias
Answers: 2
Mathematics, 22.06.2019 04:30
Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0). what are the directrices?
Answers: 3
Mathematics, 22.06.2019 05:30
The 7th grade has collected $200 for a field trip that would cost $600. the teachers decided to ask $50 from additional students to cover the cost. how mny students must pay to cover the cost ? a 16studentsb 80studentsc 160studentsd 8students show work
Answers: 2
Mathematics, 22.06.2019 05:30
5of the first 50 shoppers at a grocery store buy apples. how many shoppers can the store manager expect to check out before 25 customers buy applesa.) 100b.)150c.)200d.)250
Answers: 2
−4(2x+5)+2x+3= −11 what is x...
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