Percent of the population over the age of 65

Source: R/BSDA-package.R

Data for Exercise 1.92 and 2.61

Elderly

Format

A data frame/tibble with 51 observations on three variables

state

a factor with levels Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Colunbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missour, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming

percent1985

percent of the population over the age of 65 in 1985

percent1998

percent of the population over the age of 65 in 1998

Source

U.S. Census Bureau Internet site, February 2000.

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples


with(data = Elderly, 
stripchart(x = list(percent1998, percent1985), method = "stack", pch = 19,
           col = c("red","blue"), group.names = c("1998", "1985"))
           )

with(data = Elderly, cor(percent1998, percent1985))
#> [1] 0.8919852
if (FALSE) {
library(ggplot2)
ggplot2::ggplot(data = Elderly, aes(x = percent1985, y = percent1998)) +
           geom_point() + 
           theme_bw()
}