Scatter Graph Justification Flashcards
Scatter Graph Justification
The Scatter Graph was an essential and efficacious method of presenting our data. Firslty, the graph allowed us to identify a correlation with the data plots and line of best fit - we saw a very weak negative correlation in that as the discharge (m3s) increased the average sediment size (mm) decreased. As well as this, its visual excellence allowed us to locate any anomalies e.g. the cluster of data plots in the top left corner of the graph. More specific values which did not conform to the pattern include the sediment size (49.06mm) for the discharge of 0.409 m3s, and the sediment size (63.52mm) for the discharge of 0.389 m3s. Lastly, the scatter graph acted as a precursor to the use of calculating the Spearman’s Rank Correlation Co-efficient to identify any present statistical significance/correlation.
