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General Certificate of Secondary Education

Mathematics 4307
Specification B

Module 1 Tier H 43051H

Mark Scheme
2008 examination - June series

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Mark schemes are prepared by the Principal Examiner and considered, together with the
relevant questions, by a panel of subject teachers. This mark scheme includes any
amendments made at the standardisation meeting attended by all examiners and is the scheme
which was used by them in this examination. The standardisation…

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2008 June series

The following abbreviations are used on the mark scheme:

M Method marks awarded for a correct method.

A Accuracy marks awarded when following on from a correct method.
It is not necessary always to see the method. This can…

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2008 June series

MODULE 1 HIGHER TIER 43051H

Note: Probability - Accept fraction, decimal or percentage. Do not accept ratio.

1(a) As the time spent practising
increases, the number of errors B1 Accept negative correlation
decreases
1(b)(i) Straight line of best fit…

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2008 June series

2(a)(i) 12 + 7 (= 19) M1
19 12 6
or 0.38 or 38% A1 SC1 or 0.24 or 24% or
50 50 25
2(a)(ii) Explanation that the original data
is not known/we don't know if
B1 Accept: The…

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2008 June series

4 Correct method for Y6 or Y5
eg
235
× 50 or 235 ÷ 20 M1 or 235 ­ 178 or 57
1000
57
11.75 and 8.9 or 12 and 9 A1 57 ÷ 20 or × 50 or…

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2008 June series

8(a) (38 + 29 + 53 + 84) ÷ 4 (84 - 72)
M1 48 +
or 204 ÷ 4 4
51 A1
8(b) All three plotted at correct 1
B1 ± sq
horizontal position 2
SC1 for the…