The table below gives the height and weight of four randomly selected University undergraduate women. What is the least squares error E for these data points? 
A. E = (150A + B - 60)2 + (155A + B - 55)2 + (165A + B - 70)2 + (170A + B - 62)2
B. E = 150(A + B - 60)2 + 155(A + B - 55)2 + 165(A + B - 70)2 + 170(A + B - 62)2
C. E = (150A - 60B)2 + (155A - 55B)2 + (165A - 70B)2 + (170A - 62B)2
D. E = (150A + 60B)2 + (155A + 55B)2 + (165A + 70B)2 + (170A + 62B)2
E. none of these
Answer: A
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A. (4321 × 9) - 8 = 3880 B. (432 × 9) - 8 = 38,881 C. (4321 × 9) - 8 = 38,881 D. (4321 × 9) - 8 = 28,881
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A. 0 B. -1 C. e D. 1
Solve the system using the inverse matrix method.
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Solve the problem.Using the table below, what is the median travel range of the vehicles? Round to the nearest tenth.
(All figures rounded to nearest tenth.)
A. 412.3 miles B. 415.4 miles C. 414.0 miles D. 412.2 miles