Statistics Review Flashcardizz HW

Front

What is a scatter plot?

Back

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

Front

What does a trend line represent in a scatter plot?

Back

A trend line is a straight line that best represents the data points in a scatter plot, indicating the general direction of the data.

Front

How can you predict values using a trend line?

Back

You can predict values by locating the desired x-value on the trend line and finding the corresponding y-value.

Front

What is correlation in statistics?

Back

Correlation measures the strength and direction of a relationship between two variables.

Front

What are the types of correlation?

Back

Positive correlation (both variables increase), negative correlation (one variable increases while the other decreases), and no correlation (no relationship between variables).

Front

What does it mean if data is clustered in a scatter plot?

Back

Clustering indicates that most of the data points are grouped together in a specific area of the graph.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data in a scatter plot, minimizing the distance between the line and all data points.

Front

How do you estimate values using a line of best fit?

Back

You can estimate values by drawing a vertical line from the desired x-value to the line of best fit and reading the corresponding y-value.

Front

What is the purpose of using scatter plots in statistics?

Back

Scatter plots are used to visually assess relationships between two variables and identify trends or patterns.

Front

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

Back

It means there is no discernible relationship between the two variables being plotted.