Scatter and Cumulative

What type of correlation is shown?

• Positive correlation

• Negative correlation

• No correlation

What type of correlation is shown?

• Positive correlation

• Negative correlation

• No correlation

Daisy spent 7 hours revising for the test. What was her test score?

• 40%

• 50%

• 60%

• 70%

The chart shows the cost and length of some plumbing jobs. Estimate the cost of a job lasting 3.5 hours.

• £160

• £180

• £200

• £220

When r = 1, the correlation is

• Positive

• Negative

• No Correlation

• Strong

What is a Trend line?

• A line on a scatter plot that shows a correlation.

• A line showing the relationship between 2 sets data most accurately

• When 2 sets data are not related.

• Predicting a value OUTSIDE the range of known values.

What is a line of best fit?

• A line on a scatter plot that shows a correlation.

• A line showing the relationship between 2 sets data most accurately

• When 2 sets data are not related.

• Predicting a value OUTSIDE the range of known values.

Which scatterplot suggests a linear relationship between x and y?

• 
• 
• 
• 

Which of the following statements are true about the line of best fit? Select all that apply

• The slope is positive

• The slope is negative

• The y-intercept is zero

• The line passes through the point (4,9)

• The line passes through the point (5,12)

Which scatter plot has a stronger correlation coefficient?

• 
•