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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
GCE Advanced Subsidiary Level and GCE Advanced Level
MARK SCHEME for the May/June 2007 question paper
9700 BIOLOGY
9700/05
Paper 5 (Planning, Analysis and Evaluation), maximum raw mark 30
This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began.
All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. •
CIE will not enter into discussions or correspondence in connection with these mark schemes.
CIE is publishing the mark schemes for the May/June 2007 question papers for most IGCSE, GCE
Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses.
Page 2
1
Mark Scheme
GCE A/AS LEVEL – May/June 2007
Syllabus
9700
(a) (i) axes correctly orientated, suitable scale, labels; all plots correct; histogram drawn/plots adjoining;
Paper
05
[3]
(ii) number of beans per pod (x)
3
4
5
6
7
8
Total
frequency (f)
4
18
28
37
8
5
n = 100
fx
12
72
140
222
56
40
∑fx = 542
[1]
(iii) mean = 5.42; ignore rounding up if working correct, allow ecf from (ii)
[1]
(iv) 1 of: the spread of data around the mean; the spread for this data is 5.42 ± 1.15; reject: reliability/accuracy/significance context
[1]
(v) standard error =
s
=
1.15
=
1.15
= 0.115;
10
n
100
allow round up to 0.12, allow ecf for n, for n = 6, SM = 0.469
(b) 1 of: not all the ovules may have been
GCE Advanced Subsidiary Level and GCE Advanced Level
MARK SCHEME for the May/June 2007 question paper
9700 BIOLOGY
9700/05
Paper 5 (Planning, Analysis and Evaluation), maximum raw mark 30
This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began.
All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. •
CIE will not enter into discussions or correspondence in connection with these mark schemes.
CIE is publishing the mark schemes for the May/June 2007 question papers for most IGCSE, GCE
Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses.
Page 2
1
Mark Scheme
GCE A/AS LEVEL – May/June 2007
Syllabus
9700
(a) (i) axes correctly orientated, suitable scale, labels; all plots correct; histogram drawn/plots adjoining;
Paper
05
[3]
(ii) number of beans per pod (x)
3
4
5
6
7
8
Total
frequency (f)
4
18
28
37
8
5
n = 100
fx
12
72
140
222
56
40
∑fx = 542
[1]
(iii) mean = 5.42; ignore rounding up if working correct, allow ecf from (ii)
[1]
(iv) 1 of: the spread of data around the mean; the spread for this data is 5.42 ± 1.15; reject: reliability/accuracy/significance context
[1]
(v) standard error =
s
=
1.15
=
1.15
= 0.115;
10
n
100
allow round up to 0.12, allow ecf for n, for n = 6, SM = 0.469
(b) 1 of: not all the ovules may have been