Use technology to compute r, the correlation coefficient.Consider the data points with the following coordinates: 
A. .2245
B. -.0781
C. .5370
D. .0537
Answer: D
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Answer the question.Describe the graph of the function f(x) = x + 1 if the domain is 
.
A. The graph consists of the four points (2, 1), (3, 1), (4, 1), and (5, 1). B. The graph consists of the four points (0, 3), (1, 4), (2, 5), and (3, 6). C. The graph is a line through the four points (2, 3), (3, 4), (4, 5), and (5, 6). D. The graph consists of the four points (2, 3), (3, 4), (4, 5), and (5, 6).
Simplify by adding or subtracting like terms.7b - 3b + 4
A. -4b + 4 B. 8b C. 10b + 4 D. 4b + 4
A pitching machine throws 70% strikes and 30% balls. Five pitches will be thrown by the machine.What is the probability that the machine will throw three balls and two strikes?
A. 0.2 B. 0.06615 C. 0.01323 D. 0.1323 E. none of these
Sketch a typical level surface for the function.f(x, y, z) = 
A. 
B. 
C. 
D. 