Mathematics 7356: Data presentation and Interpretation Topical Past Paper Questions

An investigation into the hydrocarbon emissions, X g/km, from cars in the Large Data Set was carried out. The results are summarised below. $$ \sum x=128.657\quad\quad\quad\quad\sum x^{2}=8.701\ 707\quad\quad\quad\quad n=2405 $$ where n is the total number of cars which had a mea…

A comparison of the masses (in kg) of convertible cars was made using the Large Data Set. A sample of 20 masses was chosen from both the 2002 data and the 2016 dat; The masses of the 20 cars in each sample were used to create a box plot for each year. The box plots were labelled…

Which of the terms below best describes the distribution represented by the boxplot shown in Figure 1? Figure 1 Circle your answer. [1 mark]