Speed cameras turn up trumps on toll

This graph and article could be used in nearly all of the sections of the Chance and Data curriculum. The graph is well scaled and shows the decline in road deaths with various significant events noted. Discussion could focus on whether this is the most appropriate type of graph to use; for example, would a line graph do as well? Within the article itself there is discussion of risk factors which require interpretation and comparison with each other. A further discussion could be based on the trend appearing in the graph and whether this might be expected to continue and under what circumstances.

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