Identify the abuse of statistics."38% of adults in the United States regularly visit a doctor". This conclusion was reached by a college student after she had questioned 520 randomly selected members of her college. What is wrong with her survey?
What will be an ideal response?
The sample is biased. College students are not representative of the U.S. population as a whole.
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Draw an appropriate Venn diagram and use the given information to fill in the number of elements in each region.n(A) = 48, n(B') = 60, n(C) = 51, n(A ? B) = 20, n(B ? C) = 19, n(A ? C) = 18, 
A. 
B. 
C. 
D. 
Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 60,000 B. 0.06 C. 0.00001667 D. 0.0006
Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: "nose" of the paraboloid x2 + y2 = 2z cut by the plane z = 6Density: ? = 
A. 
B. 
C. 
D. 
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.
A. 1.43 B. -1.43 C. -1.57 D. 1.57