Scatter Plots in Eighth Grade Math

The video tutorial covers scatter plots in eighth-grade math, focusing on graphing bivariate data to show relationships between two data sets. It explains how to interpret scatter plots, identify clusters and outliers, and understand associations as positive, negative, or none. The tutorial provides examples of how data points can indicate different types of relationships and associations.

What is bivariate data?

• Data with two paired variables

• Data with no variables

• Data with one variable

• Data with three variables

What does a scatter plot show?

• The relationship between two data sets

• The mode of a data set

• The median of a data set

• The average of a data set

In a scatter plot, what does the X-axis typically represent?

• The dependent variable

• The independent variable

• The average value

• The mode

What happens to the number of buyers as the price of an item increases?

• The number of buyers increases

• The number of buyers decreases

• The number of buyers fluctuates randomly

• The number of buyers stays the same

What is a cluster in a scatter plot?

• A data point far from the rest

• A line connecting data points

• A group of closely grouped data points

• A single data point

What is an outlier in a scatter plot?

• A data point that is different from the rest

• A group of closely grouped data points

• A line connecting data points

• A data point that follows the trend

What type of association is shown when both X and Y data increase?

• No association

• Inverse association

• Negative association

• Positive association

What type of association is shown when X data increases and Y data decreases?

• No association

• Direct association

• Positive association

• Negative association

What does it mean if a scatter plot has no association?

• All data points are closely grouped

• Data points form a straight line

• There is a clear trend

• Data points are scattered with no trend

What is the term for data points that do not follow the general trend in a scatter plot?

• Clusters

• Outliers

• Associations

• Trends