For each number puzzle, follow these steps. a. Find two numbers that fit each clue.
b. Draw unmarked arrays, and label the dimensions to
show that your numbers fit the clue.
c. List other numbers that also fit the clue.
1
This number of tiles will make an array that is 2 tiles wide.
Number:
Number:
Array:
Array:
What other numbers fit this clue?

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