Answer the question.Which of the following describes the bias that occurs when researchers select their sample in such a way that it is unlikely to be representative of the population?
A. Selection bias
B. Availability bias
C. Double-blind bias
D. Participation bias
Answer: A
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Find the general solution of the equation. Express the solution explicitly as a function of the independent variable.e8ty'(t) = -9
A. y = 72e8t + C
B. y = 
e8t + C
C. y = 
e-7t + C
D. y = 
e-8t + C
Solve. Use ? = 3.14159 as needed.A grain conveyor 85 feet long is designed to reach the top of a grain bin 40 feet high with a radius of 10 feet. As shown in the figure, the conveyor extends to the center of the top of the bin. How far from the front edge of the bin should the base of the conveyor be placed? Express your answer in feet and inches, rounded to the nearest inch.
A. 64 feet B. 64 feet 9 inches C. 65 feet D. 65 feet 3 inches
For the given arithmetic series, what is Sn?a1 = 2, d = -5, and n = 12
A. -1224 B. -304 C. -306 D. -612
Use Newton's Law of Cooling, T = C + (T0 - C)ekt, to solve the problemA cup of coffee with temperature 101°F is placed in a freezer with temperature 0°F. After 5 minutes, the temperature of the coffee is 66.7°F. What will its temperature be 11 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 37°F B. 34°F C. 41°F D. 32°F