Correlation

Maths

Bivariate data

What type of correlation does the following graph show?

Amount of flu jabs and percentage of people getting the flu

Number of hours studied and score in a test

Number of sandwiches made and cost to make them

Score in an IQ test and amount of tea drunk

With which of these two variables would you expect to see negative correlation?

With which of these two variables would you expect to see no correlation?

Air conditioning bill on the x axis and heating bill on the y axis

Air conditioning bill on the x axis and temperature on the y axis

Temperature on the x axis and air conditioning bill on the y axis

Temperature on the x axis and heating bill on the y axis

Look at the table below. How expensive is the car which is 5 years old?

If there was a car which was 3 years old, it would definitely be worth £4,500

On average, the older the car, the more expensive it is

The data shows the age and price for 10 cars

Referring to the same table, which of these statements is FALSE?

The scatter graph below shows the temperature and the number of ice creams sold at the beach on certain days. What was the temperature, in degrees, when 20 ice creams were sold?

A higher temperature caused the number of ice creams sold to increase

It's impossible that only 5 ice creams were sold when the temperature was 25 degrees - the person plotting the graph must have made a mistake!

More ice creams sold caused the temperature to increase

Since there are two different numbers of ice creams sold when the temperature is 25 degrees, there must be a mistake on the graph

Referring to the scatter diagram above, which of the following statements is likely to be TRUE? Select one

Correlation

Lesson outcome