The student clearly explains how the data were collected and processed, and uses a relevant Spearman’s rank test to assess the relationship between distance from the stream and *R. repens* frequency. However, the raw-data table is not numbered, and the work does not adequately address uncertainties, including their effect on the graph and correlation. The student also misinterprets the p-value, does not state a significance level, and does not account for the lack of independence between adjacent quadrats, which limits the validity of the reported significance.
