Answer the question.Tell which of the following distributions would have the least variation.
A. Weights of all pet dogs
B. Weights of all children who have a pet cat
C. Weights of all pets
D. Weights of all pet cats
Answer: D
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Perform indicated operation and round as indicated.160.45 ÷ 1.6 round to two decimal places
A. 10.08 B. 10.03 C. 100.78 D. 100.28
Calculate the direction of 
and the midpoint of line segment P1P2.P1(4, -8, 7) and P2(5, -7, 6)
A. 
i + 
j - 
k; 
B. 
i + 
j - 
k; 
C. 
i + 
j - 
k; 
D. 
i + 
j + 
k; 
Rewrite the expression in terms of sin ? and cos ?.tan ?(cot ? - cos ?)
A. 1 B. 1 - sin ? C. -sec2 ? D. 0
Solve the problem.The radius of a sphere is given by the formula 
, where S is the surface area. If the surface area is 10,699 square inches, what is the radius? Use 3.14 for ?, and round your answer to the nearest tenth of an inch.
A. 51.7 in. B. 91.6 in. C. 0 in. D. 29.2 in.