Jamal has two straight sticks with lengths of 20 cm and 18 cm. Jamal searches for a third stick so that he can form a triangle.
Which length of stick will allow Jamal to make a triangle?

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?