Which statement correctly compares the areas of these two rectangles? 2 rectangles are made up of shaded squares. Rectangle 1, referred to as the blue rectangle, has 10 rows of 4 squares per row. Rectangle 2, referred to as the yellow rectangle, has 6 rows of 8 squares per row. CLEAR CHECK The area of the blue rectangle is less than the area of the yellow rectangle. The area of the blue rectangle is greater than the area of the yellow rectangle. The area of the blue rectangle is equal to the area of the yellow rectangle. You cannot compare the areas of these two rectangles.

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias