Module 6 Practice Test - Scatter Plots & Two Way Tables

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables by displaying data points on a two-dimensional grid.

Tags

CCSS.8.SP.A.1

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data.

Tags

CCSS.8.EE.B.5

Front

How do you determine the grand total in a two-way table?

Back

The grand total is found by adding all the values in the table, representing the total number of observations.

Tags

CCSS.8.SP.A.4

Front

What does an outlier represent in a scatter plot?

Back

An outlier is a data point that differs significantly from other observations, indicating a possible anomaly.

Tags

CCSS.8.SP.A.1

Front

How do you calculate the percentage of a subgroup in a survey?

Back

To calculate the percentage, divide the number of individuals in the subgroup by the total number surveyed, then multiply by 100.

Tags

CCSS.7.SP.A.2

Front

What is the purpose of a trend line in a scatter plot?

Back

A trend line helps to predict values and understand the relationship between the variables represented in the scatter plot.

Tags

CCSS.8.SP.A.2

Front

What does it mean if two variables have a positive correlation?

Back

A positive correlation means that as one variable increases, the other variable also tends to increase.

Tags

CCSS.HSS.ID.B.5

Front

What does it mean if two variables have a negative correlation?

Back

A negative correlation means that as one variable increases, the other variable tends to decrease.

Tags

CCSS.HSS.ID.B.5

Front

How can you identify an outlier in a scatter plot?

Back

An outlier can be identified as a point that is far away from the cluster of other points in the scatter plot.

Tags

CCSS.8.SP.A.1

Front

What is the formula for finding the slope of a line?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1) using two points (x1, y1) and (x2, y2) on the line.

Tags

CCSS.8.EE.B.5