Please join my zo. om please i need someone to talk to i'm really sad because i miss my great grandmother she passed 4 or 5 months ago but she means the world to me so please join. Meeting ID: 523 121 0760 Passcode: 0CHTAZ That's me in the pictures.

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