a) Draw a pie chart that represents the two types of lung cancer. Show your working.

Answer:
Please, check the image provided
Explanation:
Pie Charts
They are graphic representations of quantitative results from experimental or theoretical experiences. Instead of showing a table, it's usually preferred to show a graph where the viewer can easily understand the relative relations between the parameters under study.
The chart pie is a circular shape divided into sectors whose areas are proportional to the proportions between each parameter and the total. Since the whole sector of a circle has 360°, each sector will be a proportion or ratio of that angle.
The outcome shown in the table gives us these statistics:
Small Cell Carcinoma : 15%
Non-Small Cell Carcinoma : 85%
Each category has the following angles in the chart pie
Small Cell Carcinoma : 15%*360°=54°
Non-Small Cell Carcinoma : 85%*360°=306°
The first category is shown in blue and the second in green. Please check the image below.