The approximate areas of North Dakota and Puerto Rico are listed below: North Dakota: 1.83\times 10^{5}1.83×10 5 square kilometers Puerto Rico: 5.33\times 10^{3}5.33×10 3 square kilometers How many times larger is North Dakota than Puerto Rico? Write your answer in standard notation, rounding to the nearest tenth.

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?