Consider a tree of heigh y meters. use the model above to find an expression for the approximate number of leaves on the tree. give your answer in terms of y. picture below

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?

Im so bad at fractions they are not my best math thing to work on

Which of the following statements is a true conclusion that can be made from the scaled bargraph?