Mathematics 7357: Probability Topical Past Paper Questions

The Human Resources director in a company is investigating the graduate status and salaries of its employees. Event G is defined as the employee is a graduate. Event H is defined as the employee earns at least £40 000 a year. The director summarised the findings in the table of p…

There are two types of coins in a money box: • 20% are bronze coins • 80% are silver coins Craig takes out a coin at random and places it back in the money box. Craig then takes out a second coin at random. Find the probability that both coins were of the same type. [2 marks] Fin…

A sample of 240 households were asked which, if any, of the following animals they own as pets: • cats (C) • dogs (D) • tortoises (T) The results are shown in the table below. Represent this information by fully completing the Venn diagram below. A household is chosen at random f…