Hellp Determine where the function is increasing, decreasing, and constant.

A). Increasing: (–4, 0) Decreasing: (6, 2) Constant: No where
B). Increasing: (–4, 0) Decreasing: (0, 4) Constant: No where
C). Decreasing: (–4, 0) Increasing: (0, 4) Constant: No where
D). Increasing: (–4, 6) Decreasing: (6, 2) Constant: No where

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?