Find the standard deviation for the given data. Round your answer to one more decimal place than the original data.10.8, 15.3, 48.6, 45.1, 21.3, 19.9

A. 4320.2
B. 15.98
C. 46.9
D. 5596.4


Answer: B

Mathematics

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A. 14?
B. ?
C. 2?
D. 7?

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Evaluate the integral by using multiple substitutions. dx

A. (8 + sin2 (x - 10))3/2 + C
B. (8 + cos2 (x - 10))3/2 + C
C. (8 + sin2 x)3/2 + C
D.  + C

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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(-5x5)(3x4)

A. 8x9 B. 8x20 C. -15x20 D. -15x9

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Find the average value of    over the given region. + z2 over the cube in the first octant bounded by the coordinate planes and the planes  

A. 243 B. 162 C. 9 D. 81

Mathematics