LECTURE 2 – TABLES & CHARTSLECTURE 2 – TABLES & CHARTS
[1] Chapter 2, pp. 33 – 79
Frequency, relative frequency, cumulative table
Pie chart
Bar chart, Column chart
Histogram
Line chart, Radar chart
Scatter plot, bubble chart
PROBABILITY & STATISTICS– Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 1
Raw dataRaw data
No. Sex (Male /
Female)
Age
(year)
Waiting time
(Minute)
Evaluation
(VG, G, F, B)
1 Female 43 15 to 20 Bad
2 Male 23 0 to 5 Good
3 Female 36 5 to 10 Very Good
…
50 Female 28 10 to 15 Fair
PROBABILITY & STATISTICS – Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 2
Data from a customer survey, n = 50 observations
Frequency & Relative frequencyFrequency & Relative frequency
Frequency table of Gender
Relative frequency (proportion): = 
 ()
PROBABILITY & STATISTICS – Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 3
Sex Male Female
Frequency 20 30
Sex Male Female
Relative frequency
Proportion, percent
0.4
40%
0.6
60%
Pie chartPie chart
[VAL
UE]
[PER
CE…
[VAL
UE]
[PER
CE…
Gender
Male
Female
PROBABILITY & STATISTICS – Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 4
Sex Male Female
Freq. 20 30
% 40% 60%
Evalua
tion
Very
Good Good Fair Bad
Freq. 10 25 9 6
% 20% 50% 18% 12%
[VALUE
]
[PERCE
NTAGE]
[VALUE
]
[PERCE
NTAGE]
[VALUE
]
[PERCE
NTAGE]
[VALUE
]
[PERCE
NTAGE]
Evaluation
Very Good
Good
Fair
Bad
Column chartColumn chart
PROBABILITY & STATISTICS – Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 5
Evaluation Freq. %
Very Good 10 20%
Good 25 50%
Fair 9 18%
Bad 6 12%
TOTAL 50 100% 10
25
9
6
0
5
10
15
20
25
30
Very Good Good Fair Bad
Evaluation