T4W7 TS Q36 – Selective High School

Mr Di Niro wants to research fuel used by boats. He conducts an experiment with 10 small boats and 10 large boats.

Over 10 days, he notes that the smaller boats have used up more fuel than the larger boats.

He concludes: "The heavier the boat, the less fuel it consumes."

Which of the following statements shows the mistake Mr Di Niro has made?

He did not use the same number of boats for his experiment. He did not take into account the distance travelled by each boat. He did not use an adequate number of days for the experiment. He did not correctly measure the amount of fuel consumed.

Are you sure you want to leave?

Which of the following statements shows the mistake Mr Di Niro has made?