Line of Best Fit and Scatter Plot

What does a scatter plot show?

• The sum of two data sets

• The product of two data sets

• The relationship between two sets of data

• The difference between two data sets

How can a line of fit be used in a scatter plot?

• To predict future outcomes

• To calculate the sum of all data points

• To divide the plot into equal parts

• To color code the data points

What is the first step in writing an equation of a line of fit?

• Make a scatter plot of the data

• Identify two points on the line

• Draw a line on the graph that fits the data

• Determine if the data can be represented by a linear function

Tags

CCSS.8.EE.B.5

What does the slope of a line of fit represent?

• The decrease in y for a unit increase in x

• The increase in y for a unit increase in x

• The total sum of all data points

• The average value of the data set

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

In the scatter plot, does the image shows a "Line of Best Fit"?

• Yes

• No

Tags

CCSS.8.EE.B.5

What does a trend line with a negative slope indicate?

• Linear correlation

• No correlation

• Negative correlation

• Positive correlation

Tags

CCSS.8.EE.B.5

What is an outlier in the context of scatter plots?

• The lowest data point in the plot

• The highest data point in the plot

• A data point that lies far away from the other data points

• A data point that lies within the trend of the data

What does a scatter plot with no correlation look like?

• All points are in a straight line

• Points are scattered randomly with no discernible pattern

• Points form a perfect circle

• Points are clustered in one corner of the plot

How is the y-intercept of a line of fit interpreted in the context of a scatter plot comparing shoe size to height?

• It represents the average shoe size

• It represents the average height

• It represents the starting height at a shoe size of zero

• It is irrelevant in this context

Tags

CCSS.HSF.LE.B.5