I am analysing a weather data for a computer science course using hadoop.I am taking away all the weather related issues out of the analysing and just looking strictly at it in the eyes of statistics.
Lets say there are 2 events, 1 occurs 250 times in the year, and the other event occurs 50 times in a year. The second event occurs every single day the first event occurred. Can I say that there is a relationship between the two events? I am not sure if it is safe to say there is a good chance there is a relationship between the data because this could just be a coincidence. For example if the event A occurred 25 times a year and event B occurred 15 times again event B occurring every time event A occurred I would be more confident to say there is a relationship between the two events because there is less of a chance it is a coincidence due the the number of times event A occurred. To rephrase, lets say event A occurred 365 times in the year and event B occurred 10 times in the year, event B would occur every single time event A occurred, but this is just because event A occurred every day so there is no relationship. Is there some sort of standard to say that when two events have a statistically high probability of having a relationship of some sort?
he dataset will check for relationships in the short term and longterm (check to see if there is a relationship recently say in the last 3 months, 1 year, but also longer 4 years, 8 years, 10 years). I know for 10+ years, I can probably rely that if events occurred always together there is probably a good chance of a relationship because of the vast time, but for shorter ranges, is there some sort of method?
Hope this makes sense.