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STATS: What is the probability that the first two students who signed up will be the winners? P(1st two students who signed up win)= ? How do/would you optimize performance and lift standards in a team? Is their a far range listening device if so what is it? I have 36 purple stones. Under florescent lights stones turned violet/bluish on a 1921 Liberty $20 gold piece, what r they? I want to login again?