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Why are charts and graphs used to present data? Find out in this quiz!

# Unit 4 - Appropriate Chart/Graph

In this GCSE Biology quiz we look at some of the many types of graphs and charts and find out how to choose the appropriate one to present different types of data. Scatter graphs, pie charts and bar charts are examples of some of the different ways used by scientists to present their data. It isn't always easy to know which one to use in which situation but if you learn a few simple 'rules', you will find it a lot easier. It all comes down to what type of data you need to present and what information you want from the data.

Raw data is the data that you obtain from an experiment, for example, you may have a list of the numbers of people in your class who can and cannot roll their tongues; the list of results is the raw data. Once you have your raw data, you need to decide on its type and how it is to be used. In some cases, you may just want to present the results of a survey but in other cases, you may want to use it to make predictions or to spot patterns.

Please click on any of the smaller images below to get a larger picture.
1.
Looking at this line graph covering a 12-hour period, which hour shows the highest amount?
3
5
7
11
Line graphs usually have a jagged appearance
2.
Points just plotted without joining or bars is known as a ...
scatter graph
line graph
pie chart
bar chart
Scatter graphs are useful for spotting patterns in data
3.
What sort of chart is this?
Pie chart
Line graph
Bar chart
Scatter graph
Each bar is a different group of data
4.
Identify this type of chart.
Line graph
Bar chart
Histogram
Scatter graph
You can join the points in a line. Hence line graph
5.
Looking at this histogram of the height of cherry trees, why is this a histogram and not a bar chart?
Photograph courtesy of Jtneill at Wikimedia Commons
Height is continuous data
Height is discontinuous data
The data is averaged
The data is accurate
Discontinuous data is presented in a bar chart
6.
This chart is a type of...
bar chart
line graph
mean
data
In a true bar chart, there is a gap between each bar but you would not be penalised for missing out the gap in an exam or coursework
7.
This shows the population of a country as time goes on. The population is...
increasing
decreasing
the same
increasing and decreasing
It is drawn as a line graph because the population is known at any given time
8.
In the following pie chart, which has the largest percentage?
Photograph courtesy of Optigan13 at Wikimedia Commons
MSM
MSF
IDU
Other
Pie charts are great for showing percentages
9.
This is an example of which type of chart?
Line graph
Histogram
Bar chart
Pie chart
Looks like the pieces of a pie! Each piece represents a percentage of the pie. Half of the pie would be 50%
10.
Using this pie chart, showing the composition of the human body, which of the following is the body mainly made of?
Photograph courtesy of JenCom at Wikimedia Commons
Protein
Fat
Carbohydrate
Water
All humans are about 70% water!