z Level of Measurement before after 33 Graphic Presentation of a Frequency

Z level of measurement before after 33 graphic

  • Notes
  • UltraLightningLyrebird8361
  • 17
  • 100% (1) 1 out of 1 people found this document helpful

This preview shows page 8 - 16 out of 17 pages.

z ? Level of Measurement (before / after) 33 Graphic Presentation of a Frequency Distribution The three commonly used graphic forms are: z Histograms z Frequency polygons z Cumulative frequency distributions 34
Image of page 8
Histogram HISTOGRAM A graph in which the classes are marked on the horizontal axis and the class frequencies on the vertical axis. The class frequencies are represented by the heights of the bars and the bars are drawn adjacent to each other. 34 Histogram Using Excel 36
Image of page 9
Frequency Polygon z A frequency polygon also shows the shape of a distribution and is similar to a histogram. z It consists of line segments connecting the points formed by the intersections of the class midpoints and the class frequencies. 37 R.L.E. - Success in ENGH 1010 based on Grade in ENGH 0990
Image of page 10
Histogram Versus Frequency Polygon z Both provide a quick picture of the main characteristics of the data (highs, lows, points of concentration, etc.) z The histogram has the advantage of depicting each class as a rectangle, with the height of the rectangular bar representing the number in each class. z The frequency polygon has an advantage over the histogram. It allows us to compare directly two or more frequency distributions. 38 Cumulative Frequency Distribution 41
Image of page 11
Cumulative Frequency Distribution 42 $0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000 $350,000 $400,000 Job A Job A 100000 150000 200000 250000 300000 350000 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Your Salary After You Graduate
Image of page 12
$0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000 $350,000 $400,000 Job B Job B 130000 165000 200000 235000 270000 305000 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Your Salary After You Graduate $0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000 $350,000 $400,000 Job A Job B Job A 100000 150000 200000 250000 300000 350000 Job B 130000 165000 200000 235000 270000 305000 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Your Salary After You Graduate
Image of page 13
$0 $200,000 $400,000 $600,000 $800,000 $1,000,000 $1,200,000 $1,400,000 Job A Job B Job A 100000 250000 450000 700000 1000000 1350000 Job B 130000 295000 495000 730000 1000000 1305000 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Your Salary After You Graduate R.L.E. - UVU Course Sections % Full
Image of page 14
R.L.E. - UVU Course Enrollment Compared to Prior Spring Term R.L.E. - Remedial Placement of New Freshmen at UVU
Image of page 15
Image of page 16

You've reached the end of your free preview.

Want to read all 17 pages?

  • Spring '11
  • Leany
  • Frequency, Frequency distribution, Bar chart, Histogram, Summary statistics

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes