Graphs

Question 1

What are 5 ways of presenting quantitative data

Answer 1

1. in a table
2. bar charts
3. scattergrams
4. histograms
5. line graphs

Question 2

What is a scattergram

Answer 2

A type of graph that represents the strength and direction of a relationship between co-variables in a correlational analysis

Question 3

What is a bar chart

Answer 3

A type of graph in which the frequency of each variable is represented by the height of the bars- used for discrete data (categorical or nominal)

Question 4

What is a histogram

Answer 4

A type of graph which continuous data is represented . Similar to bar chart, except the bars touch each other.

Question 5

What is a line graph

Answer 5

A type of graph which represents continuous data that forms a bell-shaped pattern. Mean, median and mode are all located at the highest peak.

Question 6

What is a skewed distribution

Answer 6

A spread of frequency data that is not symmetrical, where the data clusters to one end

Question 7

What is a positive skew

Answer 7

A type of distribution in which the long tail is on the positive (right) side of the peak and most of the distributions is concentrated on the left- the mean is higher than the mode and median

Question 8

What is a negative skew

Answer 8

A type of distribution in which the long tail is on the negative (left) side of the peak and most of the distribution is concentrated on the right- the mode is lower than the mode and median