Presentation of Data Flashcards
1
Q
What is the first thing we can use to present data?
A
- Flow Chart
2
Q
What is a Flow Chart?
A
- Flow charts are simplifying devices that can be used to communicate quite complex relationships.
- They usually consist of boxed annotations linked by lines or arrows.
- They are used for putting across concepts and ideas, e.g. the hydrological cycle, the ecosystem or the spiral of unemployment.
3
Q
What is the second thing we can use to present data?
A
- Logarithmic Graphs
4
Q
What is a logarithmic Graph?
A
- Logarithmic graphs are used to compare things that differ enormously in size, for example the population growth.
- These are drawn on graph paper where the logarithmic scale compresses the range of values.
- It gives more space to the smaller values and reduces the amount of space for the larger values, showing relative growth clearly.
- On the scale, there are cycles of values. Each cycle increases by a larger amount, usually to the power of 10.
5
Q
What is the third thing we can use to present data?
A
- Kite Diagram
6
Q
What is a Kite Diagram?
A
- These show the change of a percentage over distance.
- They are most commonly used to show changes in the percentage cover of plant species/vegetation along a transect.
- They are: - Clear and easy to interpret and show the density and distribution of variables.
- However: - Not all data can be represented by these charts, and they are time-consuming to plot by hand
7
Q
What is the fourth thing we can use to present data?
A
- Polar Graph
8
Q
What is a Polar Graph?
A
- A polar graph is used to show direction as well as magnitude.
- It can compare multiple sets of data and lots of data can be put on one graph.
- It is very visual and individual variables within the diagram can be compared.
- No stats tests can be linked to them.
- It is hard to spot anomalies and it is hard to make a scale suitable.
9
Q
What is the fourth thing we can use to present data?
A
- Triangulation Graphs
10
Q
What is a Triangulation Graph?
A
- They are used to show data that can be divided into three parts.
- This might include data such as soil (sand silt + clay), employment (primary, secondary + tertiary and housing (terraced, detached + semi-detached).
11
Q
What is the advantage and disadvantage of Triangulation Graphs?
A
- These graphs are tricky to construct - it is easy to get confused!
- Main advantage: allows a large amount of data to be shown in one diagram end, in many cases once plotted, value graphing become evident.
12
Q
What is the fifth thing we can use to present data?
A
- Dispersion Diagrams
13
Q
What is a Dispersion Diagram?
A
- A dispersion diagram shows the range of a set of data and their tendency to group or disperse. It may also be used for comparing two groups of data.
14
Q
What are the advantages of a Dispersion Diagram?
A
- It shows the spread from the mean + they are very visual.
- It gives an indication of the reliability of the data.
- You can work out the mean, mode, range , median, lower quartile, upper quartile and interquartile range.
- Anomalies can be shown.
15
Q
What is the single disadvantage of a Dispersion Diagram?
A
- You need lots of data.