Reaction Time 2 (Graphs and Statistics)

Test your reaction time by catching a falling ruler or clicking a target. Create a data set of experiment results, and calculate the range, mode, median, and mean of your data. Data can be displayed on a list, table, bar graph or dot plot. The Reaction Time 2 Student Exploration focuses on mean.

  Launch Gizmo


  • Review basic statistics including range, mode, and median of a data set.
  • Determine the mean of a data set.
  • Understand the effect of outliers on the range, mode, median, and mean.
  • Compare data sets from related experiments.
  • Draw conclusions based on data.
  • mean, median, mode, outlier, range