Associations in Data

Identify the join relative frequency of boys that have blond hair.

• .4

• 0.1

• 0.44

• 0.2

If one variable increases as the other variable increases, there is said to be a _________ __________.

• Positive association

• Negative association

• Boundary point

• Cluster

If one variable increases as the other variable decreases, there is said to be a __________ __________.

• Negative association

• Positive association

• Linear association

• Boundary line

A line that represents, in general, data on a scatterplot. The ________________ is used to make predictions for other data.

• Line of best fit

• Line

• Line of symmetry

• Line segment

If there is no apparent pattern in the scatterplot, then the variables have __ ___________.

• No association

• Linear association

• Strength

• Non-linear association

Strength is a description of how much scatter there is in the data away from the line of best fit. Above is an example of which kind of strength?

• Weak strength

• Moderate strength

• Strong strength

A _____ is a set of disconnected data

points plotted on a coordinate plane. It allows

us to investigate connections between two

variables.

• Segmented Bar Graph

• Scatter Plot

• Two Way Table

• Relative Frequency

A _____provides a way to compare two categorical variables. It shows one of the variables across the top and the other down one side. Each entry in the table is the frequency or relative frequency of the category shown by the column and row headings.

• Two-way table

• Segmented Bar Graph

• Scatter plot

• Relative Frequency

The _____ of a category tells us

the fraction or percent of the data set that is

in this category.

• Relative Frequency

• Segmented Bar Graph

• Scatter Plot

• Two-way table

A _____ compares two

categories within a data set. The whole bar

represents all the data within one category.

Then, each bar is separated into parts

that show the percentage of each

part in the second category.

• Segmented Bar Graph

• Two-way table

• Relative Frequency

• Scatter plot