Jane bought 6 banana at $250 per dozen. she sells four and a half dozen at $35 each and the others were sold at %20 each determine if she made a profit or loss state her profit or loss as a percentage. show working

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?