Yes 80-89 might have been a unique individual.
Unfortunately the graph doesn't show how many were in each age group and there is no data to explain the graph. Oddly it has 2 scores for the 52,000wpm perhaps they were scores relative to experience. When I emailed them to ask I only got an autobot email in return telling me they no longer respond to email that I have to call them however I can sign up for their course online.
A couple of things have taught me to be suspicious of graphs Basically I was taught how to design graphs to make things look better than what they are (even lie). A textbook I was referred to called how to make graphs lie. This makes me look more closely at graphs.
A book that I found useful in looking at what people/governments are trying to sell you more objectively is 200% of Nothing A K Dewdney copyright 1993 ISBN 0-471-14574-2(paper)It gives an overview of how graphs are used to misinform, selective numbers plotted on the graph, graphic illiusions and noticing what you haven't been told.
Alex
