You were told that the amount of time elapsed between consecutive trades on a foreign stock exchange market followed a normal distribution with a mean of 15 seconds. You were also told that the probability that the time elapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. The probability that the time elapsed between two consecutive trades would fall below 13 seconds was 7%. What is the probability that the time elapsed between two consecutive trades will be between 15 and 16 seconds