101 Ch. 4 - Chapter Four Displaying Quantitative Data Where...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Chapter Four Displaying Quantitative Data Where do we start? Quantitative Data is a set that can be numerically represented. Percent of Population over 65 per state (2000) 13.0 5.7 13.0 14.0 10.6 9.7 13.8 11.2 13.0 11.7 17.6 9.6 13.3 11.3 12.1 12.4 14.9 13.3 12.5 11.6 14.4 11.3 13.5 12.3 12.1 12.1 13.5 13.4 13.6 11.0 12.0 13.2 11.7 12.9 12.0 14.7 13.3 13.2 12.8 15.6 14.5 12.1 14.3 12.4 9.9 8.5 12.7 11.2 15.3 13.1 Dealing With a Lot of Numbers... When looking at large sets of quantitative data, it can be difficult to get a sense of what the numbers are telling us without summarizing the numbers in some way. In this chapter, we will concentrate on graphical displays of quantitative data. What do these data tell us? Make a picture Histogram Stem-and-Leaf Display Distribution (of the data) Where are the values? Shape Center Spread Displaying Quantitative Data Histogram Give each graph a title Give each one of the axes a label Make as neat as possible Computer Grid paper Displaying Quantitative Data Histogram Divide data values into equal-width piles (called bins ) Count number of values in each bin Plot the bins on x-axis Plot the bin counts on y-axis Example Population Over 65 Sort data Using Excel or any other software....
View Full Document

Page1 / 29

101 Ch. 4 - Chapter Four Displaying Quantitative Data Where...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online