AQA GCSE STATISTICS 8382/1H HIGHER TIER PAPER 1 Mark scheme Version 1.0 MAY 2023

AQA GCSE STATISTICS 8382/1H HIGHER TIER PAPER 1 Mark scheme Version 1.0 Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme has been prepared for practice papers and has not, therefore, been through the process of standardising that would take place for live papers. Further copies of this mark scheme are available from Glossary for mark schemes GCSE examinations are marked in such a way as to award positive achievement wherever possible. For GCSE Statistics papers, marks are awarded under various categories. If a student uses a method which is not explicitly covered by the marking instructions the same principles of marking should be applied. Credit should be given to any valid methods. Examiners should seek advice from their senior examiner if in any doubt. Key to mark types M Method marks are awarded for a correct method which could lead to a correct answer. A Accuracy marks are awarded when following on from a correct method. It is not necessary to always see the method. This can be implied. B Marks awarded independent of method. ft Follow through marks. Marks awarded for correct working following a mistake in an earlier step. SC Special case. Marks awarded for a common misinterpretation which has some mathematical worth. M dep A method mark dependent on a previous method mark being awarded. B dep A mark that can only be awarded if a previous independent mark has been awarded. oe Or equivalent. Accept answers that are equivalent. eg accept 0.5 as well as 1 2 [a, b] Accept values between a and b inclusive. [a, b) Accept values a ≤ value b 3.14 … Accept answers which begin 3.14 eg 3.14, 3.142, 3.1416 Use of brackets It is not necessary to see the bracketed work to award the marks. Examiners should consistently apply the following principles Diagrams Diagrams that have working on them should be treated like normal responses. If a diagram has been written on but the correct response is within the answer space, the work within the answer space should be marked. Working on diagrams that contradicts work within the answer space is not to be considered as choice but as working, and is not, therefore, penalised. Responses which appear to come from incorrect methods Whenever there is doubt as to whether a student has used an incorrect method to obtain an answer, as a general principle, the benefit of doubt must be given to the student. In cases where there is no doubt that the answer has come from incorrect working then the student should be penalised. Questions which ask students to show working Instructions on marking will be given but usually marks are not awarded to students who show no working. Misread or miscopy Students often copy values from a question incorrectly. If the examiner thinks that the student has made a genuine misread, then only the accuracy marks (A or B marks), up to a maximum of 2 marks are penalised. The method marks can still be awarded. Further work Once the correct answer has been seen, further working may be ignored unless it goes on to contradict the correct answer. Choice When a choice of answers and/or methods is given, mark each attempt. If both methods are valid then M marks can be awarded but any incorrect answer or method would result in marks being lost. Work not replaced Erased or crossed out work that is still legible should be marked. Premature approximation Rounding off too early can lead to inaccuracy in the final answer. This should be penalised by 1 mark unless instructed otherwise. Continental notation Accept a comma used instead of a decimal point (for example, in measurements or currency), provided that it is clear to the examiner that the student intended it to be a decimal point. Q Answer Marks Comments 1 Neutral B1 Any indication 2 69 B1 Any indication 3 47 B1 Any indication 4 x n B1 Any indication 5 (a) 37 B2 B1 for sight of 22 or 15 or 19 or 18 in working or on answer line 5 (b) 73 B1 5 (c) Two comments about the ages of males eg There were a lot of boys in the workhouse There were many old men in the workhouse. B2 oe, eg Very few young men in the workhouse The modal age for males was 0 – 9 years B1 for one correct comment Additional guidance B2 could be awarded for a single comment eg most males in the workhouse were either boys or at least 70 years old Q Answer Marks Comments 6 (a) 2014 B1 6 (b) 102.4  M1 95.0 626 611 A1 Accept 626 610 or 626 612 or 626 600 6 (c) Visitors at Tate Liverpool have increased by 4.4% B1 oe, eg Visitors at Tate Liverpool have increased by more than/approximately 4.4% The number of visitors at Tate Liverpool has increased by a greater percentage than the figure for England B1 oe Additional guidance Visitors at Tate Liverpool have increased by more than 2.2% B0 B1 7 (a) East, North-West and Wales B1 all correct 7 (b) 0.722 × or .722 M1 oe or A1 their – M1 A1ft ft their value for total who voted as long as less than and more than Q Answer Marks Comments 7 (c) Value has been obtained through rounding Or Unlikely that vote was counted to precisely the correct value B1 oe oe 7 (d) Full data on statement Eg data fully supports what Sadiq said as the three regions to vote leave, had the three highest % of people who voted B2 B1 partial statement eg the table supports what Sadiq said 7 (e) The vertical scale has been shortened (which exaggerates differences) B1 oe (This is a bar chart and so) the bars should have gaps between them B1 oe Q Answer Marks Comments 7 (f)(i) Reads off remaining areas voting % B2 B1 allow up to two errors Finds mean or median % who voted in regions for leave and regions for remain B2 ft B1 finds mean or median % who voted in regions for either leave or regions for remain Ft if work visible showing incorrect values for reading off from graph Average % who voted is higher in leave regions than remain regions B1ft ft their means or medians Finds range of % who voted in regions for leave and regions for remain B1ft ft if work visible showing incorrect values for reading off from graph The spread of the % who voted for leave is greater than that who voted for remain B1ft ft their ranges Accept that the ranges are similar based on correct values Additional guidance Correct values Allow plus or minus half a small square when reading off from bar chart, these values above are a guide