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Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

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?