What to trade around Australia RBA Interest Rate Decision news event

Based on the last 12 RBA Interest Rate Decision events in Australia, we expect GBPUSD to trend downwards right now. Based on these past events there is a 66.67% chance of this. We expect GBPUSD to trend downwards for the next 2 hours because the released value is = 0.1%. A price movement of 15 pips is expected.

Historical events that allowed us to draw this conclusion

03 Aug 04:30
01 Jun 04:30
04 May 04:30
02 Mar 03:30
02 Feb 03:30
03 Nov 03:30
06 Oct 03:30
01 Sep 04:30