Pupils analyse the results of a survey to better understand spending habits among the surveyed population.
Scenario
You are undertaking work experience in your town mayor’s office. The city council has recently undertaken a survey of the local residents to better understand their spending habits and current financial situation. You have been tasked with assisting with the analysis of this research data.
Curriculum references
| OCR 11.02c | Use tree diagrams to enumerate sets and to record the probabilities of successive events (tree frames may be given and in some cases will be partly completed). Construct tree diagrams, two-way tables or Venn diagrams to solve more complex probability problems (including conditional probabilities; structure for diagrams may not be given). |
| Edexcel P9 | Calculate and interpret conditional probabilities through representation using expected frequencies with two-way tables, tree diagrams and Venn diagrams. |