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Australian AMC 2024 - Senior Question 18

AMC AUSTRALIA · Australian AMC 2024 - Senior

Question 18

A researcher surveys 10 households and creates this scatterplot showing how many people and how many internet-connected devices are in each house. To help categorise her data, she adds a vertical line representing the median number of people and a horizontal line representing the median number of devices. One extra household is surveyed and the results are added to the scatterplot. What will happen to the median lines?

Question illustration
  1. Both lines move.
  2. Neither line moves.
  3. Only the vertical line moves.
  4. Only the horizontal line moves.
  5. It depends on the location of the new point.