Statistics and Correlation

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 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 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

The scatter graph shows the relationship between the amount of rainfall and the number of umbrellas sold each day.

On another day, 30 umbrellas were sold. Estimate the amount of rainfall for that day.

• 5

• 10

• 12

• 8

The scatter graph shows the relationship between the amount of rainfall and the number of umbrellas sold each day.

On another day, there was 8.5 mm of rainfall. Estimate the number of umbrellas sold on that day.

• 75 umbrellas

• 40 umbrellas

• 120 umbrellas

• 30 umbrellas

Using the line of best fit. If a student had a handspan of 20.5 cm, the estimation height will be 160 cm. True or False?

• True

• False

Using the line of best fit. If a student had a height of 146 cm, the estimated handspan will be 17 cm. True or False?

• True

• False