Visual Representation of Data

Question 1

What are the five different ways to visually represent data?

Answer 1

1. Scattergraph
2. Bar chart
3. Histograms
4. Line graphs
5. Distribution graphs

Question 2

What do scatter graphs show in their data?

Answer 2

Scattergrams are used to show associations between co - variables rather than differences

Question 3

How do scatter graphs depict the different co - variables?

Answer 3

Either of the co - variables can occupy the x - axis or the y - axis, then each point displayed on the graph will coincide with x and y position of the co - variables

Question 4

When are bar charts used to display information?

Answer 4

Bar charts are used to display data that has been split into categories (discrete data) so the difference in mean values can easily be seen

Question 5

Why are the bars separated on a bar chart, what does this show?

Answer 5

The bars are separated on a bar chart in order to denote that we are dealing with separate conditions

Question 6

How are the bar graphs plotted?

Answer 6

The amount of frequency for each category is plotted on the y - axis whilst the categories are plotted on the x - axis

Question 7

How are histograms plotted?

Answer 7

Histograms have bars touching each other unlike in bar charts and this represents the data being dealt with is continuous data rather than discrete

Question 8

How does a histogram depict the co - variables on its graph?

Answer 8

The histogram has on the x - axis equal sized intervals of one category whilst the y - axis represents the frequency

Question 9

What type of data do line graphs represent?

Answer 9

Line graphs represent continuous data

Question 10

How is continuous data represented on a line graph?

Answer 10

Line graphs use points that are connected by lines to show how something changes in value

Question 11

How are line graphs plotted?

Answer 11

Line graphs have the IV plotted on the x - axis and the DV is plotted on the y - axis

Question 12

What do distribution graphs display?

Answer 12

Distribution graphs display all the measures of central tendency

Question 13

What is a normal distribution?

Answer 13

A normal distribution is a measure of certain variables; the frequency of these measurements should form a bell - shaped curve, which is symmetrical

Question 14

When do skewed distributions occur?

Answer 14

Some data sets derived from psychological scales or measurements may produce skewed distributions

Question 15

What are skewed distributions?

Answer 15

Skewed distributions are distributions that may appear to lean one side or the other

Question 16

What are the two different types of skewed distributions?

Answer 16

There are positive skew distributions and negative skew distributions

Question 17

What occurs in a positive skewed distribution?

Answer 17

A positively skewed distribution is where most of the distribution is concentrated towards the left of the graph

Question 18

Where is the mean, median and mode placed when it comes to positive skewed distribution?

Answer 18

The mean is the lowest score, the median is in the middle and the mode is the highest score

Question 19

What occurs in a negative skewed distribution?

Answer 19

A negatively skewed distribution is where most of the distribution is concentrated towards the right of the graph

Question 20

Where is the mean, median and mode placed when it comes to negative skewed distribution?

Answer 20

The mean has the lowest score, the median is in the middle, the mode then has the highest score