Use Chebyshev's theorem to solve the problem.In a certain distribution of numbers, the mean is 50 and the standard deviation is 6. What can you say about the percentage of numbers that lie between 38 and 62?
A. at least 50%
B. at most 75%
C. at least 75%
D. at most 25%
Answer: C
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Simplify the expression.
A. undefined B. tan(4x + ?) C. 0 D. tan(4x - ?)
Solve the problem by integration.Find the area bounded by y = csc 3 x cot x, x = 
, x = 
, and y = 0.
A. 6
B. 
C. 
D. 4
Use the Hamilton method to make the assignment.In a recent census, Iowa's population in thousands was 4,503, Illinois' was 8,220, and Indiana's was 5,300. Allocate 28 members of the U.S. House of representatives to these three states.
A. Iowa: 8; Illinois: 13; Indiana: 7 B. Iowa: 7; Illinois: 13; Indiana: 8 C. Iowa: 6; Illinois: 15; Indiana: 7 D. Iowa: 10; Illinois: 11; Indiana: 7
Determine the area of the triangle. If necessary, round the answer to two decimal places. 
A. 9.23 B. 12.69 C. 18.47 D. 4.62