Check your numeracy skills with this simple quiz: If the probability of the markets going up next week was 50% each day, what would be the total probability that the markets will go up at least one single day in that week? a) 0% b) 50% c) 96.875% d) 100% e) 250% f) none of the above Answer: ====== Plot MetaStock indicator below to check your answer. MetaStock -> Tools -> Indicator Builder -> New Copy and paste formula below. ==================== Probability addition ==================== ---8<--------------------------- { Displays sum of correlated event probabilities } { Plot in own window } { http://www.metastocktools.com } per1:=Input("1st probability %",0,100,50)/100; per2:=Input("2nd probability %",0,100,50)/100; per3:=Input("3rd probability %",0,100,50)/100; per4:=Input("4th probability %",0,100,50)/100; per5:=Input("5th probability %",0,100,50)/100; per6:=Input("6th probability %",0,100,0)/100; (1-((1-per1)*(1-per2)*(1-per3) *(1-per4)*(1-per5)*(1-per6)))*100 ---8<--------------------------- http://www.metastocktools.com