Seven musicians (R, S, T, U, V, W, X) are playing in Lalapolza, Poland for a charity. What is the probability of ordering these acts if: T is first. The order is U, V, X, W, T, S, R. R is fifth and W is last. T or V are third. a. What is the probability of T being first.
b. What is the probability of the order being exactly U, V, X, W, T, S, R?
c. What is the probability of R being fifth and W is last?
d. What is the probability that T or V are third?

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

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.

Which equation represents the function on the graph?