* Fuel consumption data from Weisberg, Applied Regression analysis; /*--------------------------------------------------------------* Data from the American Almanac for 1974, except for fuel consumption, which comes from 1974 World Almanac and Book of Facts, and area which comes from the Times Atlas of the World. Note that one variable, NLIC, is a measure which would vary directly with state population. INCome, on the other hand is scaled on a per-person basis. To make the variables comparable, NLIC is also represented in scaled form, DRIVERS = NLIC / POP = proportion of population with drivers license *----------------------------------------------------------------*/ title 'Fuel Consumption across the US'; data fuel; input state $ area pop tax nlic inc road drivers fuel; label area = 'Area (sq. mi.)' pop = 'Population (1000s)' tax = 'Motor fuel tax (cents/gal.)' nlic = 'Number licensed drivers (1000s)' inc = 'Per Capita Personal income ($)' road = 'Length Federal Highways (mi.)' drivers= 'Proportion licensed drivers' fuel = 'Fuel consumption (/person)'; *STATE AREA POP TAX NLIC INC ROAD DRIVERS FUEL ; datalines; AL 50767 3510 7.00 1801 3333 6594 0.513 554 AR 52078 1978 7.50 1081 3357 4121 0.547 628 AZ 113508 1945 7.00 1173 4300 3635 0.603 632 CA 156299 20468 7.00 12130 5002 9794 0.593 524 CO 103595 2357 7.00 1475 4449 4639 0.626 587 CT 4872 3082 10.00 1760 5342 1333 0.571 457 DE 1932 565 8.00 340 4983 602 0.602 540 FL 54153 7259 8.00 4084 4188 5975 0.563 574 GA 58056 4720 7.50 2731 3846 9061 0.579 631 IA 55965 2883 7.00 1689 4318 10340 0.586 635 ID 82412 756 8.50 501 3635 3274 0.663 648 IL 55645 11251 7.50 5903 5126 14186 0.525 471 IN 35932 5291 8.00 2804 4391 5939 0.530 580 KS 81778 2258 7.00 1496 4593 7834 0.663 649 KY 39669 3299 9.00 1626 3601 4650 0.493 534 LA 44521 3720 8.00 1813 3528 3495 0.487 487 MA 7824 5787 7.50 3060 4870 2351 0.529 414 MD 9837 4056 9.00 2073 4897 2449 0.511 464 ME 30995 1029 9.00 540 3571 1976 0.525 541 MI 56954 9082 7.00 5213 4817 6930 0.574 525 MN 79548 3896 7.00 2368 4332 8159 0.608 566 MO 68945 4753 7.00 2719 4206 8508 0.572 603 MS 47233 2263 8.00 1309 3063 6524 0.578 577 MT 145388 719 7.00 421 3897 6385 0.586 704 NC 48843 5214 9.00 2835 3721 4746 0.544 566 ND 69300 632 7.00 341 3718 4725 0.540 714 NE 76644 1525 8.50 1033 4341 6010 0.677 640 NH 8993 771 9.00 441 4092 1250 0.572 524 NJ 7468 7367 8.00 4074 5126 2138 0.553 467 NM 121335 1065 7.00 600 3656 3985 0.563 699 NV 109894 527 6.00 354 5215 2302 0.672 782 NY 47377 18366 8.00 8278 5319 11868 0.451 344 OH 41004 10783 7.00 5948 4512 8507 0.552 498 OK 68655 2634 6.58 1657 3802 7834 0.629 644 OR 96184 2182 7.00 1360 4296 4083 0.623 610 PA 44888 11926 8.00 6312 4447 8577 0.529 464 RI 1055 968 8.00 527 4399 431 0.544 410 SC 30203 2665 8.00 1460 3448 5399 0.548 577 SD 75952 579 7.00 419 4716 5915 0.724 865 TN 41155 4031 7.00 2088 3640 6905 0.518 571 TX 262017 11649 5.00 6595 4045 17782 0.566 640 UT 82073 1126 7.00 572 3745 2611 0.508 591 VA 39704 4764 9.00 2463 4258 4686 0.517 547 VT 9273 462 9.00 268 3865 1586 0.580 561 WA 66511 3443 9.00 1966 4476 3942 0.571 510 WI 54426 4520 7.00 2465 4207 6580 0.545 508 WV 24119 1781 8.50 982 4574 2619 0.551 460 WY 96989 345 7.00 232 4345 3905 0.672 968 ;