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

2 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 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 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman Frequency Table of Qwerty Word Ratings Table RatingFrequency

4 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman Figure 2-2 Histogram of Qwerty Word Ratings Rating Frequency

5 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman Relative Frequency Histogram of Qwerty Word Ratings Figure % % % % % Rating Relative Frequency

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

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

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

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

10 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman Stem-and Leaf Plot Raw Data (Test Grades) StemLeaves

11 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 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 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman Pie Chart Figure 2-8 Firearms ( %) Ingestion of food or object ( % Fire ( %) Drowning ( %) Poison ( %) Falls (12, %) Motor vehicle (43, %) Accidental Deaths by Type

13 Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman Scatter Diagram NICOTINE TAR

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

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