Let f be a function. Then f is odd if f(-x) = -f(x) for all x in the domain of f.

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?

What is the equation of a line passing through (-6,5) and having a slope of 1/3

What percent of 18 is 24? and plz explain thx.