A worker bee has a mass of \,1\cdot{ 10^{-4}}1⋅10 −4 1, dot, 10, start superscript, minus, 4, end superscript \text{kg}kgstart text, k, g, end text. There are 4\cdot{ 10^4}4⋅10 4 4, dot, 10, start superscript, 4, end superscript worker bees living in one hive. What is the mass of all the worker bees in the hive together? Write your answer in scientific notation.

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?