Edexcel GCSE (9-1) Statistics Sample Assessment Materials - Issue 3 - June 2018

Sep 5, 2026

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Sample assessment materials for Pearson Edexcel GCSE (9-1) in Statistics, Issue 3 (June 2018). The content presents mark-scheme style answers and additional guidance for multiple questions covering tally charts, addition of grouped frequencies, selecting suitable diagrams (bar, pie, bar-line), probability calculations, and evaluating reliability using sample data. It also includes criteria for choosing appropriate averages, assessing suitability of charts for given data, interpreting comparisons, and discussing appropriate methods for data collection.

LanguageEnglish

CategoryExam

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Question 3

Tally chart and frequency totals

Probability and diagram selection

Question 4

Data types: primary vs secondary

Sampling advantages and disadvantages

Question 5

Probability expressed in equivalent forms

Reliability of results

Question 6

Choosing and justifying averages

Suitability of diagrams

Question 7

Interpreting graphs and comparing film categories

Time series suitability

Question 8

Reading and comparing chart information

Question 9

Assessing data collection methods

30 Pearson Edexce l Level 1/ Leve l 2 GCSE ( 9-1) in Stat ist ics – Samp le Assessment Materials Issue 3 – June 2018 © Pearson Education Limited 2018 | Question number | Answer | | Additional guidance | Mark | | --- | --- | --- | --- | --- | | 3(a) | B1B1 | Number of times Tally Frequency 1 |||| |||| |||| 14 2 |||| || 7 3 |||| 4 4 ||| 3 5 || 2 | 1st B1 any one row or one column correct
2nd B1 all correct | (2) | | 3(b) | B1ft 1 | | | (1) | | 3(c) | M1 ‘14’ + ‘7’ + ‘4’
A1ft 25 | | M1 for the addition of correct 3 numbers from their tally chart A1 ft their tally chart | (2) | | 3(d) | B1 [e.g. bar](e.g. bar) chart | | B1 for any suitable diagram, e.g. pie chart, bar line chart | (1) | Pearson Edexce l Leve l 1/ Leve l 2 GCSE ( 9-1) in Stat ist ics – Samp le Assessment Materials Issue 3 – June 2018 © Pearson Education L imited 2018 31 | Question number | Answer | Additional guidance | Mark | | --- | --- | --- | --- | | 4(a) | B1 e.g. Some employees may not wish to give their salary (confidential/personal) . | | (1) | | 4(b) | B1 All of the employees at the company. | | (1) | | 4(c)(i)
4(c)(ii) | B1 e.g. primary data is data you collect yourself.
B1 e.g. secondary data is data collected by someone else. B1 e.g. known reliability, no secondary data available | | (2)
(1) | | 4(d) | B1 Advantage:
􀁸 e.g. Convenient
􀁸 e.g. Equal number of males and females represented B1 Disadvantage:
􀁸 e.g. Not representative
􀁸 e.g. Biased
􀁸 e.g. Employees coming early may have similar pay | 1st B1 any one correct advantage
2nd B1 any one correct disadvantage | (2) | 32 Pearson Edexce l Level 1/ Leve l 2 GCSE ( 9-1) in Stat ist ics – Samp le Assessment Materials Issue 3 – June 2018 © Pearson Education Limited 2018 | Question number | Answer | Additional guidance | Mark | | --- | --- | --- | --- | | 5(a) | B1 ~~ ~~14 oe | For probability answers accept equivalent fractions, decimals or percentages | (1) | | 5(b) | M1 ~~ ~~14 􀁵 60
A1 15 | | (2) | | 5(c) | M1 ~~ ~~9~~ ~~􀀎4259~~ ~~ or 1􀀐 ' ~~ ~~745 '
A1 ~~ ~~3845 oe | For probability answers accept equivalent fractions, decimals or percentages | (2) | | 5(d) | B2 e.g. ‘reliable since the conclusion is based on a large number of spins’or e.g. 3 is scored many more times than 1 or 2 | B2 for ‘reliable’ with supporting reason based on collected data
OR B1 reliable with incomplete reasoning | (2) | Pearson Edexce l Leve l 1/ Leve l 2 GCSE ( 9-1) in Stat ist ics – Samp le Assessment Materials Issue 3 – June 2018 © Pearson Education L imited 2018 33 | Question number | Answer | Additional guidance | Mark | | --- | --- | --- | --- | | 6(a) | B2 for median AND a correct reason, e.g.
􀁸 reference to the extreme value in the female cat weights
􀁸 reference to the median not being affected by extreme values OR ifB2 not earned...
B1 for an incomplete answer
e.g. median with an attempt at a reason, OR correct reason without a conclusion
OR ifB1 not earned...
SC B1 for mean AND uses all of the data | B2 for a complete answer assessing the appropriateness of the choice of average.
OR ifB2 not earned...
B1 for an incomplete answer assessing the appropriateness of the choice of average. | (2) | | 6(b) | B2 Not suitable as the data is not bivariate/in related pairs oe OR ifB2 not earned...
B1 Not suitable, with attempt at a reason | B2 for a complete answer assessing the appropriateness of the choice of diagram
OR ifB2 not earned...
B1 for an incomplete answer assessing the appropriateness of the choice of diagram | (2) | 34 Pearson Edexce l Level 1/ Leve l 2 GCSE ( 9-1) in Stat ist ics – Samp le Assessment Materials Issue 3 – June 2018 © Pearson Education Limited 2018 | Question number | Answer | Additional guidance | Mark | | --- | --- | --- | --- | | 7(a) | B1 Bar heights of 9 and 7 drawn for action
B1 Correct shading | | (2) | | 7(b) | B1 Drama and Thriller | | (1) | | 7(c) | B1 41 | | (1) | | 7(d) | B1

FAQs

How are tally charts used to derive totals in this assessment?

The guidance expects correct frequency counts from the tally chart and then summing the relevant totals for the requested result.

Which diagrams are accepted for representing data and what is required for full marks?

Appropriate diagrams such as bar, pie, or bar-line charts are accepted. Full credit requires the diagram choice to match the question and follow the stated requirements.

How is reliability of conclusions assessed in the probability and sampling questions?

Reliability is judged using supporting reasoning based on collected data, such as a larger number of trials producing more dependable conclusions.

Sep 5, 2026

Upload by Rhys