Presentation of Quantitative Data

Question 1

bar charts

Answer 1

discrete data
describes data that has been divided into categories
bars do not touch each other to show that we are dealing with separate categories

Question 2

histograms

Answer 2

continuous data
bars do touch each other
frequency density = frequency / class width

Question 3

line graphs

Answer 3

continuous data
points are connected by lines to show the change of values
IV on x-axis DV on y-axis

Question 4

scattergrams

Answer 4

used to show associations not differences