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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