The scores on the math section of the SAT are normally distributed with a mean of 520 and standard deviation of 115. a. What percentile is Josiah in, if he scored 384 on the SAT?

b. What is Taylor's score, if she is in the 65th percentile?

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?