Percent of the population over the age of 65
Data for Exercise 1.92 and 2.61
Elderly
A data frame/tibble with 51 observations on three variables
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
percent of the population over the age of 65 in 1985
percent of the population over the age of 65 in 1998
U.S. Census Bureau Internet site, February 2000.
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
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))
## Not run:
library(ggplot2)
ggplot2::ggplot(data = Elderly, aes(x = percent1985, y = percent1998)) +
geom_point() +
theme_bw()
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.