1Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman

MARIO F. TRIOLAMARIO F. TRIOLA EIGHTHEIGHTH

EDITIONEDITION

ELEMENTARY STATISTICSSection 2-3 Pictures of Data

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

depict the nature or shape of the data distribution

Histograma bar graph in which the horizontal

scale represents classes and the vertical scale represents frequencies

Pictures of Data

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

Frequency Table of Qwerty Word RatingsTable 2-3

0 - 2 20

3 - 5 14

6 - 8 15

9 - 11 2

12 - 14 1

Rating Frequency

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

Figure 2-2

Histogram of Qwerty Word Ratings

0 - 2 20

3 - 5 14

6 - 8 15

9 - 11 2

12 - 14 1

Rating Frequency

5Chapter 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 - 2 38.5%

3 - 5 26.9%

6 - 8 28.8%

9 - 11 3.8%

12 - 14 1.9%

RatingRelative

Frequency

6Chapter 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

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

Figure 2-4

Frequency Polygon

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

Figure 2-5

Ogive

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

Figure 2-6

Dot Plot

10Chapter 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

Stem Leaves

6 7 8 910

72 55 8 9 90 9 0

11Chapter 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

Mo

tor

Ve

hic

le

Fa

lls

Po

iso

n

Dro

wn

ing

Fir

e

Ing

es

tio

n o

f fo

od

or

ob

jec

t

Fir

ea

rms

Frequency

Accidental Deaths by Type

12Chapter 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

13Chapter 2. Section 2-3. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman

Scatter Diagram

••

••

••

••

• •••

••

0

0.0 0.5

••

•••

•

1.0 1.5

10

20

•

NICOTINE

TA

R

14Chapter 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

15Chapter 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