What feature of the data is responsible for reducing the

Question

Question: Why so small? Make a scatterplot of the following data:

x      1      2       3       4       9       10

y    10      3       3       5       9       11 

Use your calculator to show that the correlation is about 0.5. What feature of the data is responsible for reducing the correlation to this value despite a strong straight-line association between x and y in most of the observations?