The following table shows the running speed R, in feet per second, of animals of length L, in inches. Use the regression line for the data to estimate the running speed of animals that are 11 inches long.
L 3.5 6.3 9.4 9.8 R 8.26 15.79 24.02 24.99?
?
A. 13.89 feet per second
B. 28.96 feet per second
C. 13.88 feet per second
D. 28.24 feet per second
Answer: D
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Find the value of x.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
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What will be an ideal response?