A land surveyor was measuring the distances from The unknown length can be found using the
various points on a plot of land. Her measuring tool broke Pythagorean theorem.
before the last leg measure was determined.
The theorem states that the
of the
squares of the legs is
- the square of the
(12H/
hypotenuse.
The missing length is feet.
AL 137H

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