This table shows the number of seats on various types of airplanes, the planes' cruising speed, and
Question:
a. How strongly is the number of seats related to operating cost? How strongly is the speed related to operating cost?
b. Does the number of seats or the speed have the stronger correlation to operating cost? Why might that correlation be stronger?
Transcribed Image Text:
SpeedOperating cost Speed Operating cost Seats(m Plane B737-400 MD-80 B737-300/700 DC-9-50 A319 B737-100/200 DC-9-40 B737-500 B717-200 DC-9-30 F-100 DC-9-10 CRJ-145 ERJ-145 ERJ-135 sn) 2.948 Plane B747-400 B747-200/300357 L-1011 DC-10-10 DC-10-40 DC-10-30 MD-11 ($/h) 8,158 8,080 8,721 5,000 Seats(mih) 141 407 135 431 131 408 126 365 122445 117 401 111380 109 410 106 374 522 ,. 康 2417 309 520 6,388 2,601 1.845 270 4.878 5,145 3,823 B767-200ER 176 487 4,406 2,590 A300-600 479 B767-300ER | 207 | 499 3.015 149 148 MD-90 454 439 A320-100/200 146 454 B737-800 389 362 1,033 3,435
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