Mrs. bowen's homeroom is creating a web page for their schools intranet site. they need to reduce a scanned photograph so ot is 720 pixels by 320 pixels. of the scanned photograph is 1,080 pixels by 480 pixels, what is the scale factor of the dilation

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