Introduction
This module introduces you to STEP 3 questions from the Statistics section of the specification.
Each STEP 3 module consists of 4 STEP questions, some topic notes and useful formulae, a "hints" sheet and a "solutions" booklet.
STEP questions are challenging, so don't worry if you get stuck. These STEP 3 modules assume that you have already begun to develop your problem-solving skills and approach to STEP questions by working on the Foundation modules and the STEP 2 modules.
About this assignment
Statistics questions are often very wordy, and the first step is always to read the question carefully (and you will probably need to do this several times).
Knowledge of the Geometric distribution is not required for STEP in the current specification, but it can be helpful when answering old STEP questions. There are some notes on the Geometric distribution in the topics notes for this module.
Please note that Generating Functions and Covariance are no longer on the STEP specifications.
Hints, support and self evaluation
The “Hints" file gives suggestions and some starting points on how you can tackle the questions. The "Solutions" file leads you through one possible solution, but some steps will be missing and you will still need to work through the question yourself.