The independent variable is used for prediction.

the predictor variable is the square footage.

1. Sampling the data: Select a random sample of 50 houses.
   1. Identify your response and predictor variables.
2. Scatterplot: Make a scatterplot of your response and predictor variables to ensure they are appropriate for developing a linear model.

Region	State	County	listing price	$'s per square foot	square feet
East North Central	in	grant	219,500	$116	1,898
East North Central	il	vermilion	254,500	$156	1,632
East North Central	in	henry	235,000	$148	1,588
East North Central	in	wayne	203,800	$141	1,441
East North Central	il	coles	220,800	$117	1,893
East North Central	il	macoupin	197,600	$111	1,783
East North Central	in	vigo	165,800	$122	1,362
East North Central	oh	jefferson	246,500	$136	1,814
East North Central	il	jackson	154,300	$105	1,463
East North Central	oh	marion	149,700	$116	1,296
East North Central	mi	bay	145,100	$117	1,239
East North Central	il	whiteside	283,700	$136	2,087
East North Central	oh	trumbull	243,000	$133	1,827
East North Central	in	madison	229,100	$187	1,224
East North Central	il	knox	205,100	$118	1,740
East North Central	il	stephenson	235,600	$140	1,682
East North Central	il	macon	212,900	$128	1,659
East North Central	in	delaware	221,600	$134	1,651
East North Central	il	henry	257,700	$123	2,087
East North Central	oh	seneca	211,900	$168	1,263
East North Central	oh	darke	160,800	$114	1,416
East North Central	oh	scioto	204,200	$131	1,562
East North Central	oh	belmont	172,500	$101	1,710
East North Central	oh	sandusky	253,900	$146	1,738
East North Central	il	rock island	166,300	$127	1,305
East North Central	oh	clark	240,500	$137	1,752
East North Central	oh	columbiana	241,400	$164	1,469
East North Central	in	howard	304,300	$152	1,996
East North Central	oh	richland	248,900	$132	1,880
East North Central	il	peoria	187,900	$131	1,434
East North Central	il	la salle	311,100	$154	2,015
East North Central	il	madison	254,500	$156	1,628
East North Central	mi	wayne	213,800	$172	1,243
East North Central	in	vanderburgh	214,100	$134	1,596
East North Central	oh	mahoning	207,500	$123	1,688
East North Central	il	williamson	171,600	$141	1,218
East North Central	il	winnebago	236,700	$140	1,692
East North Central	il	adams	266,100	$166	1,599
East North Central	mi	saginaw	171,800	$118	1,452
East North Central	oh	montgomery	225,300	$151	1,493
East North Central	oh	allen	227,600	$147	1,550
East North Central	oh	lucas	228,300	$115	1,978
East North Central	oh	ashtabula	177,000	$107	1,658
East North Central	oh	lawrence	248,300	$156	1,587
East North Central	oh	huron	199,700	$147	1,359
East North Central	in	grant	225,372	$143	1,579
East North Central	il	vermilion	225,676	$144	1,578
East North Central	in	henry	225,980	$144	1,576
East North Central	in	wayne	226,284	$144	1,574
East North Central	il	coles	226,588	$145	1,573
East North Central	il	macoupin	226,891	$145	1,571
East North Central	mi	shiawassee	192,400	$129	1,494
East North Central	mi	calhoun	266,200	$130	2,042
East North Central	il	kankakee	148,700	$115	1,293
East North Central	in	lawrence	270,600	$137	1,978
East North Central	wi	manitowoc	181,400	$140	1,294
East North Central	il	st. clair	201,400	$164	1,225
East North Central	mi	ingham	222,500	$125	1,777
East North Central	il	mclean	203,800	$134	1,526
East North Central	mi	jackson	139,200	$116	1,201
East North Central	mi	isabella	163,000	$125	1,307
East North Central	wi	wood	266,500	$144	1,853
East North Central	mi	montcalm	218,300	$105	2,081
East North Central	wi	grant	243,200	$121	2,014
East North Central	oh	cuyahoga	265,100	$136	1,947
East North Central	oh	stark	201,000	$163	1,230
East North Central	oh	athens	246,400	$158	1,560
East North Central	wi	milwaukee	184,900	$111	1,666
East North Central	mi	lenawee	191,500	$118	1,628
East North Central	wi	fond du lac	135,300	$103	1,312
East North Central	in	st. joseph	193,000	$111	1,736
East North Central	mi	ionia	193,600	$137	1,416
East North Central	mi	genesee	194,800	$166	1,173
East North Central	oh	muskingum	188,300	$94	1,999
East North Central	il	ogle	236,600	$208	1,138
East North Central	oh	washington	324,400	$156	2,081
East North Central	oh	wayne	256,700	$129	1,986
East North Central	mi	muskegon	230,400	$131	1,757
East North Central	oh	pickaway	265,700	$143	1,853
East North Central	mi	st. joseph	188,500	$135	1,397
East North Central	il	champaign	246,700	$121	2,031
East North Central	oh	knox	192,200	$127	1,510
East North Central	oh	lorain	226,200	$126	1,789
East North Central	wi	calumet	226,400	$111	2,033
East North Central	mi	midland	174,500	$151	1,157
East North Central	mi	marquette	172,500	$120	1,433
East North Central	in	elkhart	202,300	$182	1,113
East North Central	mi	monroe	228,600	$136	1,679
East North Central	oh	lake	225,900	$135	1,676
East North Central	mi	eaton	189,900	$96	1,976
East North Central	wi	douglas	461,400	$129	3,581
East North Central	wi	marathon	431,200	$119	3,638
East North Central	il	dekalb	347,500	$97	3,574
East North Central	in	marion	323,300	$95	3,408
East North Central	in	allen	398,000	$113	3,525
East North Central	oh	hancock	380,300	$94	4,028
East North Central	in	lake	470,600	$109	4,316