What does a relative frequency tell you?

The percentage of data points in each category

What can you learn from a two-way table with calculated relative frequencies?

Whether there is a possible association between two categorical variables

Which of the following terms describes a group of data points that are close together on a scatter plot?

Clustering Negative association

What is a two-way table used for?

To display frequencies and relative frequencies for categorical data

How can you determine if a scatter plot suggests a linear association?

By fitting a straight line and assessing the model fit

What does a scatter plot show?

The relationship between two variables

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Grade 8 Statistics and Probability

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Answers

1
What does a relative frequency tell you?
The percentage of data points in each category
The slope of the line on a scatter plot
The total number of data points
The spread of the data
2
What can you learn from a two-way table with calculated relative frequencies?
Whether there is a linear association between two variables
Whether there is a nonlinear association between two variables
Whether there is a possible association between two categorical variables
Whether there is a clustering pattern in the data
3
Which of the following terms describes a group of data points that are close together on a scatter plot?
Outliers
Clustering Negative association
Positive association
Negative association
4
Which of the following is an example of a nonlinear association on a scatter plot?
A straight line
Outliers
A curve
Clustering
5
What is a two-way table used for?
To display frequencies and relative frequencies for measurement data
To display frequencies and relative frequencies for categorical data
To fit a linear model for categorical data
To fit a linear model for measurement data
6
What does the intercept of a linear model represent?
The slope of the line
The spread of data
The x-value when y=0
The y-value when x=0
7
How can you determine if a scatter plot suggests a linear association?
By looking at the clustering of data points
By calculating the mean and standard deviation
By fitting a straight line and assessing the model fit
By looking at the outliers
8
What does a scatter plot show?
The spread of a set of data
The relationship between two variables
The average of a set of data
The frequency of a set of data
9
What is the equation of a straight line called?
Regression line
Slope
Intercept
Scatter plot
10
What does the slope of a linear model represent?
The x-intercept
The spread of data
The rate of change
The y-intercept

Grade 8 Statistics and Probability Flashcards | StudBud