Lines of best fit

Maths

Bivariate data

Which of the following is the most appropriate line of best fit for the data?

It would be unreliable to make an estimate

The scatter graph below shows the shoe size and height of different secondary students. If a student had a shoe size of 6, what would you expect their height to be?

Someone who is 190cm tall would have a shoe size of 13

The shorter you are, the smaller your feet are likely to be.

There is a positive correlation between shoe size and height

Thinking about the scatter graph above, which of the statements would you agree with the LEAST? Select one.

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

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