If the domain of f is x > 0 and the domain of giz x < 0, then the sum (f+g) (x) is not defined.
O True
O False

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

Solve the equation for b: a= (1/2)(b)(h)

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