1. 1 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman M ARIO F. T RIOLA E IGHTH E DITION E LEMENTARY S TATISTICS Section 2-3 Pictures of Data

2. 2 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman depict the nature or shape of the data distribution Histogram a bar graph in which the horizontal scale represents classes and the vertical scale represents frequencies Pictures of Data

3. 3 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Frequency Table of Qwerty Word Ratings Table 2-3 0 - 220 3 - 514 6 - 815 9 - 11 2 12 - 14 1 RatingFrequency

4. 4 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Figure 2-2 Histogram of Qwerty Word Ratings 0 - 220 3 - 514 6 - 815 9 - 11 2 12 - 14 1 Rating Frequency

5. 5 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Relative Frequency Histogram of Qwerty Word Ratings Figure 2-3 0 - 238.5% 3 - 526.9% 6 - 828.8% 9 - 11 3.8% 12 - 14 1.9% Rating Relative Frequency

6. 6 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Histogram and Relative Frequency Histogram Figure 2-2 Figure 2-3

7. 7 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Figure 2-4 Frequency Polygon

8. 8 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Figure 2-5 Ogive

9. 9 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Figure 2-6 Dot Plot

10. 10 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Stem-and Leaf Plot Raw Data (Test Grades) 67 72 85 75 89 89 88 90 99 100 StemLeaves 6 7 8 9 10 7 2 5 5 8 9 9 0 9 0

11. 11 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Pareto Chart Figure 2-7 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 0 Motor Vehicle Falls Poison Drowning Fire Ingestion of food or object Firearms Frequency Accidental Deaths by Type

12. 12 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Pie Chart Figure 2-8 Firearms (1400. 1.9%) Ingestion of food or object (2900. 3.9% Fire (4200. 5.6%) Drowning (4600. 6.1%) Poison (6400. 8.5%) Falls (12,200. 16.2%) Motor vehicle (43,500. 57.8%) Accidental Deaths by Type

13. 13 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Scatter Diagram 0 0.0 0.5 1.01.5 10 20 NICOTINE TAR

14. 14 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman Figure 2-9 Deaths in British Military Hospitals During the Crimean War

15. 15 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman  Boxplots (textbook section 2-7)  Pictographs  Pattern of data over time Other Graphs