10.6 11.1 11.9 7.9 9.9 Number of cases of TB per 100,000 of the population Spearman’s Rank Spearman’s rank correlation is a statistical test that is carried out in order to assess the degree of association between different measurements from the same sample. That is, if you are looking for a positive or negative correlation between two variables. Positive correlation No correlation Negative correlation When the points on a graph clearly fit onto a line of best fit it is easy to determine whether a correlation exists. However, as the points become further placed from each other it is hard to make an accurate judgement. This is where statistics is used; to clarify how confident we are that a correlation exists. Spearman’s Rank Worked Example 1. Whales
Number of cases of TB per 100,000 of the population 10.6 11.1 11.9 7.9 9.9 Spearman’s Rank Spearman’s rank correlation is a statistical test that is carried out in order to assess the degree of association between different measurements from the same sample. That is, if you are looking for a positive or negative correlation between two variables. Positive correlation No correlation Negative correlation When the points on a graph clearly fit onto a line of best fit it is easy to determine whether a correlation exists. However, as the points become further placed from each other it is hard to make an accurate judgement. This is where statistics is used; to clarify how confident we are that a correlation exists. Spearman’s Rank Worked Example 1. Whales