Seven friends accept the invitation to the twins birthday party. At the last minute, Tomas and emilio learn that their neighbour also wants to attend. The twins realize that they can stay within their budget by buying different amounts of popcorn. Describe a different popcorn scenario that will allow the twins to bring 8 friends, including their neighbor, and will stay within their budget of $200.

Two lines that do not intersect are skew. always sometimes or never

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

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