ch 2 sec 2

ch 2 sec 2 - Histograms,Frequency PolygonsandOgives...

This preview shows pages 1–8. Sign up to view the full content.

Histograms, Frequency  Polygons and Ogives Chapter 2 Section 2 1 September 29, 2010 Mr. Kenneth Horwitz

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

View Full Document
Chapter 2 Frequency Distributions and  Graphs In your notes  Create a Frequency Distribution for  p. 61 #2 2
2-2 Histograms, Frequency  Polygons, and Ogives 3 Most Common Graphs in Research 1. Histogram  2. Frequency Polygon  3. Cumulative Frequency Polygon (Ogive) 3

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

View Full Document
2-2 Histograms, Frequency  Polygons, and Ogives The  histogram  is a graph that displays the data  by using vertical bars of various heights to  represent the frequencies of the classes. The class boundaries  are represented on the  horizontal axis. 4
Histograms Construct a histogram to represent the data for the number of college of private colleges who only offer bachelors degrees. 5

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

View Full Document
Histograms Class Limits Class Boundaries Frequency 70- 116 117 - 163 164 - 210 211 - 257 258 - 304 305 - 351 352 – 398   69.5 - 116.5 116.5 - 163.5 163.5 - 210.5 210.5 - 257.5 257.5 - 304.5 304.5 - 351.5 351.5 - 398.5 5 9 6 6 0 1 1 Histograms use class boundaries and  frequencies of the classes. 6
A histogram is a vertical bar graph without spaces  in between the bars. Step 1 – Draw and label the x (horizontal) and y  (vertical) axis Step 2 – Label the x axis with the class boundaries  and the frequencies on the y axis. Using the frequencies as heights draw vertical bars

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 26

ch 2 sec 2 - Histograms,Frequency PolygonsandOgives...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online