Convert the matrix of observations to mean-deviation form, and construct the sample covariance matrix.
A.
S = 
B.
S = 
C.
S = 
D.
S = 
Answer: C
Mathematics
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Identify the type of surface represented by the given equation.
+ 
= 5
A. Paraboloid B. Ellipsoid C. Parabolic cylinder D. Elliptical cylinder
Mathematics
Find the center (h, k) and radius r of the circle. Graph the circle.x2 + (y + 4)2 = 9
A. (h, k) = (0, 4); r = 3
B. (h, k) = (0, -4); r = 3
C. (h, k) = (-4, 0); r = 3
D. (h, k) = (4, 0); r = 3
Mathematics
Solve the problem.What is (
)n if n is an even whole number?
A. 1
B. 
C. 
D. n
Mathematics
Determine whether the equation defines y as a function of x.y = 5x - 2
A. Yes B. No
Mathematics