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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 meeting ensures that the
mark scheme covers the candidates' responses to questions and that every examiner
understands and applies it in the same correct way.…read more

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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 be implied.
B Marks awarded independent of method.
M dep A method mark which is dependent on a previous method mark being
awarded.
ft Follow through marks.…read more

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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 from
between (9, 1) and (10, 2) to B1 Line must pass vertical at 2 and 9
between (2, 6.4) and (2, 7.…read more

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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.…read more

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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 2.…read more

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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 two given points plotted
correctly both horizontally and
All three correct heights B1 ft
1
vertically ± sq
2
8(c) Reading of next moving average M1 ft their line
their 54 × 4 ­ (29…read more

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