Provide an appropriate response.In a statistics class, the following test scores were recorded for a student: 88, 83, 81, 77, 83, 69, 79. Find the mean, median, and mode.
A. mean: 80, median: 77, mode: 88
B. mean: 81, median: 77, mode: 83
C. mean: 80, median: 81, mode: 83
D. mean: 81, median: 80, mode: 88
Answer: C
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Find the unit tangent vector T and the principal unit normal vector N. r(t) = (t2 - 8)i + (2t - 8)j + 7k
A. T = 
i + 
j; N = 
i + 
j
B. T = 
i + 
j; N = 
i - 
j
C. T = 
i - 
j; N = - 
i - 
j
D. T = 
i + 
j; N = 
i - 
j
Determine the arithmetic property expressed by the numerical statement.15(10) = 10(15)
A. associative property of multiplication B. associative property of addition C. distributive property D. commutative property of multiplication
Estimate the error in the quadratic approximation of the given function at the origin over the given region.
A. |E(x, y)| ? 0.108 B. |E(x, y)| ? 0.008 C. |E(x, y)| ? 0.036 D. |E(x, y)| ? 0.027
Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = xyi + yzj + xzk , S is the surface of the rectangular prism formed from the coordinate planes and the planes x = 5, y = 3, and z = 5, direction is outward
A. 975
B. 
C. 
D. 