However, we will use correlation in another approach to help you improve your probability of success. Imagine that you are in favor of entering long EURUSD, at the same time, you know that EURUSD is highly correlated with EURJPY. At this moment, before making an entry on EURUSD, you will seek a confirmation by looking at EURJPY or other highly correlated pairs to make sure that one other pair also has a bullish bias. Upon having a confirmation of a bullish bias on another pair in addition to EURUSD, you can then enter into EURUSD. Since we know that which pairs are highly correlated, by seeking confirmation from a highly correlated pair, our success rate on EURUSD will be higher.
You can easily get information on correlation statistics by searching on google.