Unit 1 lesson 3
- 1. Unit 1: Background to Inferential Statistics Lesson 3: Graphing and Distributions EDER 6010: Statistics for Educational Research Dr. J. Kyle Roberts University of North Texas Next Slide
- 2. Frequency Distribution X = 1,2,3,3,3,4,4,4,4, 5,5,5,5,5,5,5,6,6,6,6, 6,6,7,7,7,7,8,8,9,10 Cumulative frequency Next Slide 100% 30 1 10 97% 29 1 9 93% 28 2 8 87% 26 4 7 73% 22 6 6 53% 16 7 5 30% 9 4 4 17% 5 3 3 7% 2 1 2 3% 1 1 1 Percent Cumulative frequency Frequency f Score 30 28 22 9 2 Cumulative Frequency 2 9 – 10 6 7 – 8 13 5 – 6 7 3 – 4 2 1 – 2 Frequency Score
- 3. Histogram Next Slide 1 10 1 9 2 8 4 7 6 6 7 5 4 4 3 3 1 2 1 1 Frequency f Score
- 4. Frequency Histogram Interval Based Next Slide 30 2 9 – 10 28 6 7 – 8 22 13 5 – 6 9 7 3 – 4 2 2 1 – 2 Cumulative frequency Frequency Score
- 5. Frequency Histogram Categorical Based (a.k.a., Nominal) Next Slide
- 6. Scatterplot “Paired Observations” Bivariate Relationships Next Slide Person 4 Person 3 Person 2 Person 1 Person 3 4 2 3 2 2 1 1 Y X 2 4 -2 -2 2 4 5
- 7. Scatterplot: Making Your Own Next Slide 2 4 -2 -2 2 4 5 Person 4 Person 3 Person 2 Person 1 Person 2 2 2 3 4 1 1 3 Y X
- 8. Unit 1: Background to Inferential Statistics Lesson 3: Graphing and Distributions EDER 6010: Statistics for Educational Research Dr. J. Kyle Roberts University of North Texas Next Slide