Scientists want to find out whether there is a relationship between body mass and the incidence of type 2 diabetes. Which is the most suitable way to present their data?
A histogram, with the incidence of type 2 diabetes plotted on the x-axis
A pie chart, with one sector for each of the ranges of body mass measured
A scatter diagram, with body mass on one axis and incidence on the other
A bar chart, with the mean body mass of the whole sample shown as one bar
179 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.