Paul has 1/2 gallon of water. he puts an equal amount in 5 bottles. then he uses 1/3 from 1 bottle on a flower. what fraction of a gallon does paul use on the flower?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?