In geographical research we collect data to investigate how different variables may be related. For example, how the income of a country could affect its life expectancy, how the width of a river affects its velocity or how a pebble’s distance from a cliff affects its size.
If you plot these variables on a scatter graph you will be able to describe the relationship they have. Table 1 shows some examples of what your scatter graph might look like and how you would describe it using key terms.
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