data sets

 
Example 1.1
Example 1.2
Exercises 1.7(9)
Exercises 3.11(1)
Exercises 4.10(1)
Exercises 5.6(5)
Exercises 5.6(7)
Revision Exercises A(4)
Revision Exercises A(7)
Section 11.9(1)
Exercises 18.11(1)
Revision Exercises E(21)
Exercises 20.7.1(3)
Exercises 20.17(12)
Exercises 21.13(2)
Exercises 23.13(1)
Exercises 23.13(3)
Exercises 24.12(2)




BEADS
Section 11.9(1). Number of blue beads in samples of 30 beads. Each row is the frequency distribution of the number of blue beads in the samples, based on 50 samples.

Column
Name
Count
Description
C1
N0
10
Frequency counts of 0
C2
N1
10
Frequency counts of 1
C3
N2
10
Frequency counts of 2
C4
N3
10
Frequency counts of 3
C5
N4
10
Frequency counts of 4
C6
N5
10
Frequency counts of 5
C7
N6
10
Frequency counts of 6
C8
N7
10
Frequency counts of 7
C9
N8
10
Frequency counts of 8
C10
NN
10
Frequency counts of >8


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BREAKING LOADS
Revision Exercises E(21) Breaking loads of 50 steel rods.


Column
Name
Count
Description
C1
L
50
Breaking load (kg)

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CORRELATIONS
Exercises 21.13(2) Artificial data sets for correlation exercise. The pairs are (X1,Y1), (X1, Y2), (X1,Y3), (X2, Y4).

Column
Name
Count
Description
C1
X1
11
 
C2
Y1
11
 
C3
Y2
11
 
C4
Y3
11
 
C5
X2
11
 
C6
Y4
11
 

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COTTON
Exercises 5.6(5) Length of rolls of cotton
.

Column
Name
Count
Description
C1
length
50
Length (metres)

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CUCKOO EGGS
Example 1.2 Length of cuckoo eggs

Column
Name
Count
Description
C1
length
100
Length (metres)

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DRUG TRIAL
Exercises 5.6(7) Trial of drug against placebo. Placebo for 28 days, no treatment for 7 days, drug for 28 days. Respiratory capacity measured 3 times per day and the maximum recorded.

Column
Name
Count
Description
C1
placebo
28
Respiratory capacity (cc)
C2
drug
28
Respiratory capacity (cc)

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FRUIT FLIES

Revision Exercises A(7). Adult weights of fruit flies Drosophila persimilis reared as larvae at four different densities: D1, 5dm-3; D2, 10dm-3; D3, 20dm-3; D4, 40dm-3.

Column
Name
Count
Description
C1
D1
25
Weight (mg)
C2
D2
40
Weight (mg)
C3
D3
50
Weight (mg)
C4
D4
18
Weight (mg)

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GRADUATES
Exercises 24.12(2) Results of questionnaire sent by Mathematics Department of Extown University to former students.
Class of degree. (i) Honours: I, First class; IIa, Upper second class; IIb, Lower second class; III, Third class; or (ii) O, Ordinary.
Type of work. A, Management services and computing; B, Financial work; C, Research and development; D, Teaching and lecturing; E, Other.
Salary group. 1=2000-3999, 2=4000-4999, 3=5000-5999, 4=6000-6999, 5=7000-9999, 6=10000 and over.

Column
Name
Count
Description
C1
Sex
50
M or F
C2
Year
50
Year of graduation, 1970 – 1978
C3
Age
50
Age at 1 July 1979
C4
Class
50
Class of degree: I, IIa, IIb, III or O
C5
Work
50
Type of work: A-E
C6
Salary
50
Salary group, 1-6
C7
Jobs
50
Number of jobs since graduation

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HEIGHTS AND WEIGHTS
Exercises 23.13(1) Heights and weights of 54 male students.

Column
Name
Count
Description
C1
H
54
Height (cm)
C2
W
54
Weight (kg)

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LEFT HANDS
Exercises 18.11(1) Left-handedness score based on questionnaire. Integer scale from 0 to 20, a high score indicating a very left-handed person.

Column
Name
Count
Description
C1
L
100
Score (0-20)

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LETTERS
Example 1.1 Number of letters received each day.

Column
Name
Count
Description
C1
Letters
100
Count per day

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LINE FITS
Exercises 23.13(3) Artificial data sets for line fits. The four sets YA, YB, YC, YD are paired with the same X1 values.

Column
Name
Count
Description
C1
X!
11
Response
C2
YA
11
Predictor
C3
YB
11
Predictor
C4
YC
11
Predictor
C5
YD
11
Predictor
C6
X2
11
Response
C7
YE
11
Predictor

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PEBBLES
Exercise 3.11(1) Samples of 10 chosen from 100 pebbles, half the samples ‘representative’ and half ‘random’.

Column
Name
Count
Description
C1
Rep
Mean
wt(g) of representative sample
C2
Ran
Mean
wt(g) of random sample

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PLANTS
Exercises 20.17(12) Number of plants of a certain species falling in each of 100 squares.

Column
Name
Count
Description
C1
X
100
No of plants in square

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RATS
Exercises 1.7(9) Number of male rats in litters of size 5.

Column
Name
Count
Description
C1
Number
100
Count per litter

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STUDENT DATA
From ‘Basic Statistical Computing’ by Cooke, Craven and Clarke. Data collected from 100 university students. Age in years is quoted as a decimal, not years and months. The left-handedness score is based on a questionnaire which listed various activities (e.g. writing, throwing, striking a match) that can be done with either hand. It uses an integer scale, 0 to 20, a high score indicating a very left-handed person. ‘Reaction time’ was the length of time elapsed between a light being flashed and the person pressing a button. ‘Card sorting time’ was the time taken to sort a thoroughly shuffled pack of playing cards into four suits.

Column
Name
Count
Description
C1
S
100
Sex, M or F
C2
H
100
Height (cm)
C3
W
100
Weight (kg)
C4
A
100
Age (years)
C5
L
100
Lefthandedness score, 0-20
C6
R
100
Reaction time (milliseconds)
C7
C
100
Card sorting time (seconds)

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TEL CALLS
Exercises 20.7.1(3) The number of telephone calls received at an exchange in 90 successive half-minute intervals.

Column
Name
Count
Description
C1
N
90
No of calls in half a minute

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TICKETS
Exercises 4.10(1) Times taken for customers to buy tickets at a railway booking office. The times are classified according to whether cash, credit card or cheque was used.

Column
Name
Count
Description
C1
card
87
Time(sec)
C2
cheque
22
Time(sec)
C3
cash
468
Time(sec)

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WORDS
Revision Exercises A(4). Number of words in the first 100 sentences of Darwin’s Origin of Species.

Column
Name
Count
Description
C1
N
100
No. of words in sentence

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Hodder Arnold