I have data which looks like this
Reason 1 Reason 2 Reason 3
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Year 1 | 20 | 120 | 120 |
Year 2 | 220 | 20 | 2120 |
Year 3 | 2053 | 1120 | 1200 |
Year 4 | 30 | 3120 | 12 |
I now want to know if there is any kind of correlation between Reason 1 and the other two reasons. The idea is if I tackle reason 1, is there any way of telling it might also affect reason 2 and reason 3 ? Which test should I use to check this? The numbers indicate the frequency of occurrence.