the close of the stock markets on a day in 2017 there were 6100 companies listed with certain stock exchanges On this day the probabilities of advancing eclining and unchanged company stocks appears in the table for the two exchanges Find the probability that a stock was listed on Exchange 2 given that it dvanced Exchange Exchange 1 Exchange 2 Percentage of Probability of Probability of Stock Stock Companies Listed 0 5209 Advancing Declining 0 7224 0 2492 0 4791 0 6224 0 3255 Let F be Exchange 2 and E be an advance R E and P F Probability the Stocks Remain Unchanged 0 0284 0 0521