scatterplot: Interpretation of a Scatterplot

August 13, 2017
By

(This article was first published on R/exams, and kindly contributed to R-bloggers)

Name:
scatterplot
Type:
Description:
Scatterplot in an (x, y) regression setup needs to be interpreted regarding location/spread of the marginal distributions, the correlation in the joint distribution, and the corresponding regression slope. Data are drawn randomly from a suitable data-generating process so that each multiple-choice item is either about correct or clearly wrong.
Solution feedback:
Yes
Randomization:
Random numbers, text blocks, and graphics
Mathematical notation:
No
Verbatim R input/output:
No
Images:
Yes
Other supplements:
No
Raw: (1 random version)
PDF:
scatterplot-Rnw-pdf
scatterplot-Rmd-pdf
HTML:
scatterplot-Rnw-html
scatterplot-Rmd-html

Demo code:

library("exams")

set.seed(1090)
exams2html("scatterplot.Rnw")
set.seed(1090)
exams2pdf("scatterplot.Rnw")

set.seed(1090)
exams2html("scatterplot.Rmd")
set.seed(1090)
exams2pdf("scatterplot.Rmd")

To leave a comment for the author, please follow the link and comment on their blog: R/exams.

R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...



If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook...

Comments are closed.

Search R-bloggers

Sponsors

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)