Graph Correlation

What are the coordinates of the outlier?

• (1,9)

• (9,1)

• (2,2)

• y=x

What is the equation of the line of best fit?

• y= 2x+3

• y=3x+2

The scatter graph shows the relationship between the height and arm span of some students.

Describe the correlation shown on the diagram.

• Positive

• Negative

• No Correlation

The scatter graph shows the relationship between the test score and the time spent revising for a group of students.

Describe the correlation shown on the diagram.

• Positive

• Negative

• No Correlation

The scatter graph shows the relationship between the height and arm span of some students.

Another student has a height of 145 cm. Use the graph to estimate their arm span.

• 140 cm

• 120 cm

• 110 cm

• 180 cm

The scatter graph shows the relationship between the age of a car and its value.

Describe the correlation shown on the diagram.

• Positive

• Negative

• No Correlation

The scatter graph shows the relationship between two test scores of some students.

Describe the correlation shown on the diagram.

• Positive

• Negative

• No Correlation

The scatter graph shows the relationship between the age of a car and its value.

Another car is 6 years old. Estimate the value of this car.

• £6000

• £2000

• £4000

• £3000

The scatter graph shows the relationship between the two test scores of some students.

One student missed Test 2 and scored 120 marks on Test 1. Use the graph to estimate their result for Test 2

• 60

• 20

• 120

• 160

The scatter graph shows the relationship between the two test scores of some students.

One student missed Test 1 and scored 90 marks on Test 2. Use the graph to estimate their result for Test 1.

• 60

• 90

• 120

• 160