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savilla Middle School HW
Rosavilla Middle School HW
The San Juan School District wants to build a new middle school building. They ask architects
to make a scale drawing of a possible layout for the building.
H = 40 m
1. Find the perimeter and area of the scale drawing (in units and square units).
2. Find the perimeter and area of the building (in meters and square meters).

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