Size of Counties in New Jersey

Subjects: Government, Census

Methods: Histogram, DotPlot, Box and Whisker Plot, Normal Quantile Plot, Moments, Quatiles

Reference:http://www.stat.cmu.edu/DASL

Original Source: U.S. Bureau of the Census, County and City Data Book. (1977). (Washington D.C.: Government Printing Office, 1978)

Velleman, P. F. and Hoaglin, D. C. (1981). Applications, Basics, and Computing of Exploratory Data Analysis. Belmont. CA: Wadsworth, Inc.

Description: This dataset contains the areas of New Jersey Counties in square miles.

Objective: This dataset, containing the area in square miles of each county in New Jersey, can be used to illustrate basic descriptive statistics. Since this file contains only 21 observations, students can calculate means, medians, etc. by hand. Histogram and normal quantile plots show that county size is distributed approximately normally.

Number of Cases: 21

Variable Names:
  1. County: The New Jersey county
  2. Area: Area of that county in square miles
Values: 
 County         Area


Atlantic        569
Bergen          234
Burlington      819
Camden          221
Cape May        267
Cumberland      500
Essex           130
Gloucester      329
Hudson           47
Hunterdon       423
Mercer          228
Middlesex       312
Monmouth        476
Morris          468
Ocean           642
Passaic         192
Salem           365
Somerset        307
Sussex          527
Union           103
Warren          362
Rong Ye
Last modified: Thu Aug 13 21:50:14 EDT 1998