Identifying and Interpreting Patterns of Scatterplots

Which statement best describes the relationship between average traffic volume and average vehicle speed shown on the scatterplot?

• As traffic volume increases, vehicle speed increase

• As traffic volume increases, vehicle speed decreases

• As traffic increases, vehicle speed increases then decreases

• As traffic increases, vehicle speed decreases then increases

Here is part of a table that records the number of blocks and blocks per game for each player in a women’s volleyball tournament. A scatter plot that goes with the table follows.

What would be the label of the x-axis?

• Blocks

• Blocks Per Game

Which player had the most free throw attempts per game?

• Player B

• Player F

• Player A

• Player c

How can you use a scatterplot to make predictions?

• By analyzing the pattern or trend observed on the scatterplot.

• By connecting the dots on the scatterplot with a straight line.

• By ignoring the scatterplot and using other data sources.

• By randomly selecting points on the scatterplot.

What is a scatterplot?

• A scatterplot is a type of data visualization that displays the relationship between two categorical variables.

• A scatterplot is a type of data visualization that displays the relationship between two numerical variables.

• A scatterplot is a type of data visualization that displays the relationship between a numerical variable and a categorical variable.

• A scatterplot is a type of data visualization that displays the relationship between two numerical variables using a line graph.

What does a positive correlation on a scatterplot indicate?

• As one variable increases, the other variable tends to decrease.

• There is no relationship between the two variables.

• As one variable decreases, the other variable tends to increase.

• As one variable increases, the other variable also tends to increase.

What does a negative correlation on a scatterplot indicate?

• As one variable decreases, the other variable decreases.

• As one variable increases, the other variable increases.

• There is no relationship between the two variables.

• As one variable increases, the other variable decreases.

What does no correlation on a scatterplot indicate?

• A positive relationship between the variables.

• A negative relationship between the variables.

• A strong relationship between the variables.

• No relationship between the variables

How can outliers affect the interpretation of a scatterplot?

• Outliers have no effect on the interpretation of a scatterplot.

• Outliers can improve the accuracy of estimates and summary statistics.

• Outliers only affect the visual appearance of the scatterplot, not the interpretation.

• Outliers can distort the overall pattern and trend in the data, leading to inaccurate estimates and summary statistics.

What is the purpose of adding a trendline to a scatterplot?

• To visually represent the relationship between variables and identify patterns or trends.

• To confuse the viewer and make the data harder to interpret.

• To make the scatterplot look more visually appealing.

• To add unnecessary complexity to the scatterplot.