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Australian AMC 2024 - Intermediate Question 19

AMC AUSTRALIA · Australian AMC 2024 - Intermediate

Question 19

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.