UniGeniusExam CS1

Exam CS1

The CS1 syllabus and its weights

Five topics, weighted by the share of marks they carry. Regression, including generalised linear models, is the largest, at 30%.

Topic 1Data analysis, 10%
Topic 2Random variables and distributions, 20%
Topic 3Statistical inference, 25%
Topic 4Regression theory and applications, 30%
Topic 5Bayesian statistics, 15%

What the topics cover

Questions can draw on any part of the syllabus in any session, so prepare across all of it.

AreaSyllabus objectives
Data analysis and correlation1.1 and 1.2
Probability distributions and simulation2.1
Joint distributions and conditional expectation2.2 and 2.3
Generating functions, the CLT and sampling distributions2.4 to 2.6
Estimators and their properties3.1
Confidence and prediction intervals3.2
Hypothesis tests3.3
Linear regression4.1
Generalised linear models4.2
Bayesian inference5.1.1 to 5.1.5
Credibility theory5.1.6 to 5.1.9

Try a question

Aims and stages of an analysis

Paper A style · Data analysis · Straightforward · 9 marks

A general insurer's analytics team has been asked to carry out three pieces of work using its motor portfolio data:

(a) summarising the average claim cost in each region last year for the annual report;

(b) using a random sample of 2,000 policies to assess whether the claim frequency of drivers aged under 25 differs from that of older drivers across the whole portfolio, with a measure of the uncertainty;

(c) forecasting the number of claims the insurer will receive next quarter.

  1. (i)

    State, with a reason, whether each of (a), (b) and (c) has a descriptive, an inferential or a predictive aim.

    3 marks
  2. (ii)

    Describe the main stages the team should follow to carry out piece of work (c), from defining the problem to reporting the results.

    4 marks
  3. (iii)

    Suggest two tools or techniques the team could use in the exploratory stage of piece of work (a), and say what each would show.

    2 marks

Next step

Take the free diagnosticA tour of CS1

The CS1 syllabus for 2027

Questions people ask

Which syllabus applies in 2027?

The syllabus for the 2027 examinations, on the CS1 subject page.