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Which Chart to Use?

In this worksheet, student decide which graph to use for a given situation.

'Which Chart to Use?' worksheet

Key stage:  KS 4

GCSE Subjects:   Maths

GCSE Boards:   AQA, Eduqas, Pearson Edexcel, OCR

Curriculum topic:   Statistics

Curriculum subtopic:   Statistics, Interpreting and Representing Data

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

There are a number of different types of graph that you can use in statistics. The question you will sometimes need to answer is Which one should I use?

 

There are a number of situations where you will be told eactlywhich graph to use (Histograms, Scatter Graphs, Cumulative Frequency) but we have to be able to decide between the four others, Bar Charts, Pie Charts, Pictograms and Vertical Bar charts.

 

The advantages and disadvantages of each type.

Each of the different types of graph have certain advantages and disadvantages, lets look at them.

  Advantage Disadvantage
Bar Chart

Clear and easy to read

Good if you have two sets of data (dual)

Does not show proportions
Pie Chart Great for comparing proportions

We don't know the exact values of each piece unless we are told it.

Shouldn't be used for grouped data.

Pictogram Good visual impact for simple data Can be difficult to read accurately due to not being able to split pictures up
Vertical Bar Chart

Clear and easy to read

Good if you have two sets of data

Quick to draw

Does not show proportions

 

Types of data.

There are two types of data, discrete and continuous data.

Discrete Data is things that can't be split up into smaller units (i.e. Colour, Shoe size, rooms in a house)

Continuous Data is things that can be measured on a scale (Height, weight etc)

 

Continous Data should be completed using a bar chart or vertical bar chart

Discrete Data can be completed on any of the graphs.

Match the graph to it's advantage.

Column A

Column B

Bar Chart
Shows proportions
Pie Chart
Excellent visual impact
Pictogram
Quick to draw
Vertical Bar Chart
Clear and easy to read

Match the graph to it's disadvantage.

Column A

Column B

Bar Chart
Does not show proportion
Pie Chart
We don't know the exact values
Pictogram
Not accurate for complicated data
Vertical Bar Chart
Does not show proportion

If I wanted to use a graph that showed the proportions of adults and children's favourite crisps, which graph would I use?

Bar

Pie

Pictogram

Vertical Bar

I have the following data for shoe sizes.

 

Shoe Size 3 4 5 6 7 8 9 10 11 12
Freqeuncy 1 3 6 10 12 15 6 3 2 1

 

Which graph would be suitable? Select all that apply

Bar

Pie

Pictogram

Vertical Bar

I want to compare the maximum and minimum temperatures of 5 cities. Which chart should I use for this data.

Bar

Pie

Pictogram

Vertical Bar

When I am comparing the maximum and minimum temperatures of 5 cities. I use a...

Bar

Pie

Pictogram

Vertical Bar

Which graph should you not use for grouped data?

Bar

Pie

Pictogram

Vertical Bar

You can use any of the charts if you have what type of data?

You are producing a report on the hours of sunshine for a holiday brochure.

 

Which graph should you use to illustrate this?

Bar

Pie

Pictogram

Vertical Bar

I have a pie chart and I want to show the data on a bar chart.

 

Can I do this?

Yes

No

Only if you have more information

  • Question 1

Match the graph to it's advantage.

CORRECT ANSWER

Column A

Column B

Bar Chart
Clear and easy to read
Pie Chart
Shows proportions
Pictogram
Excellent visual impact
Vertical Bar Chart
Quick to draw
EDDIE SAYS
You have to match the situation you are given to the graph you want to draw, If you were producing a report, for example, you want to make an impact so a pictogram could be useful. If you want to compare proportions, you would choose a pie chart as the others cannot do this.
  • Question 2

Match the graph to it's disadvantage.

CORRECT ANSWER

Column A

Column B

Bar Chart
Does not show proportion
Pie Chart
We don't know the exact values
Pictogram
Not accurate for complicated data
Vertical Bar Chart
Does not show proportion
EDDIE SAYS
Again, you need to think if the graph is fit for what you want. If, for example, you needed to show proportion, you wouldn't pick a bar chart.
  • Question 3

If I wanted to use a graph that showed the proportions of adults and children's favourite crisps, which graph would I use?

CORRECT ANSWER
Pie
EDDIE SAYS
The key word here is proportion. Which graph shows proportions?
  • Question 4

I have the following data for shoe sizes.

 

Shoe Size 3 4 5 6 7 8 9 10 11 12
Freqeuncy 1 3 6 10 12 15 6 3 2 1

 

Which graph would be suitable? Select all that apply

CORRECT ANSWER
Bar
Pictogram
Vertical Bar
EDDIE SAYS
We would need to know the amount of each, so the only one we should't use here is the pie chart.
  • Question 5

I want to compare the maximum and minimum temperatures of 5 cities. Which chart should I use for this data.

CORRECT ANSWER
Bar
EDDIE SAYS
We are trying to represent more than one data set. The only one we can use here to do this is the...
  • Question 6

When I am comparing the maximum and minimum temperatures of 5 cities. I use a...

CORRECT ANSWER
EDDIE SAYS
When we have more than one set of data to represent, we use a dual bar chart.
  • Question 7

Which graph should you not use for grouped data?

CORRECT ANSWER
Pie
EDDIE SAYS
Because we have grouped data, it is very difficult to use a pie chart. The reason behind this is that for grouped data, we need to order it. All the other charts except pie charts allow this,
  • Question 8

You can use any of the charts if you have what type of data?

CORRECT ANSWER
discrete
EDDIE SAYS
When you have discrete data you can use any type of chart.
  • Question 9

You are producing a report on the hours of sunshine for a holiday brochure.

 

Which graph should you use to illustrate this?

CORRECT ANSWER
Pictogram
EDDIE SAYS
When you\'re producing a report, you want to make a visual impact and make it easy to read. For this, you should use...
  • Question 10

I have a pie chart and I want to show the data on a bar chart.

 

Can I do this?

CORRECT ANSWER
Only if you have more information
EDDIE SAYS
A pie chart only shows proportions, to be able to draw this on any of the other graphs, I need to know what each piece of the pie chart represents. I need more information.
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