Scatter Plots

What is the line of best fit in a scatter plot?

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

• A curved line that connects all the points in the scatter plot.

• A line that only connects the highest and lowest points in the scatter plot.

• A line that is drawn randomly without considering the data points.

What does the slope of a line in a scatter plot represent?

• The slope represents the rate of change between the two variables.

• The slope indicates the average of the data points.

• The slope shows the total number of data points.

• The slope represents the maximum value of the dataset.

What does a scatter plot with a tight cluster of points indicate?

• It indicates a weak correlation between the two variables.

• It indicates no correlation between the two variables.

• It indicates a strong correlation between the two variables.

• It indicates a random distribution of points.

What does it mean if the points on a scatter plot are widely scattered?

• It indicates a strong correlation between the two variables.

• It indicates no correlation between the two variables.

• It indicates a weak correlation between the two variables.

• It indicates a perfect correlation between the two variables.

What type of correlation is indicated by a downward sloping line in a scatter plot?

• A positive correlation.

• A negative correlation.

• No correlation.

• A strong correlation.

What does a scatter plot with a negative correlation indicate?

• As one variable increases, the other variable decreases.

• Both variables increase together.

• There is no relationship between the variables.

• As one variable increases, the other variable remains constant.

How do you interpret a scatter plot?

• You look for patterns, trends, and relationships between the two variables represented.

• You only focus on the outliers in the data.

• You ignore the data points and look for a straight line.

• You analyze the data based on the color of the points.

What is the purpose of a scatter plot?

• To display the distribution of a single variable.

• To determine the relationship between two quantitative variables.

• To compare categorical data across different groups.

• To visualize the frequency of data points in a dataset.

What does it mean if there is no correlation in a scatter plot?

• There is a strong relationship between the two sets of data.

• There is no apparent relationship between the two sets of data.

• The data points form a perfect line.

• The data points are clustered together.

How can you determine the strength of a correlation from a scatter plot?

• The closer the points are to the line of best fit, the stronger the correlation.

• The more points there are in the scatter plot, the stronger the correlation.

• The color of the points indicates the strength of the correlation.

• The size of the points determines the strength of the correlation.