What are the domain and range of the piecewise function below? A- domain: all real numbers except x=0, x=2 and x=6
range: 0≤y <-2
B- domain: all real numbers except x=0, x=2 and x=6
range: all real numbers except -2≤y <0
C- domain: all real numbers except x=6
range: all real numbers except -2≤y <0
D- domain: all real numbers except x=6
range: 0≤y <-2

Which strategy is used by public health to reduce the incidence of food poisoning?

Which pair of numbers is relatively prime? a. 105 and 128 b. 130 and 273 c. 205 and 350 d. 273 and 333

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