PLS ATLEAST ANSWER 1-3!! Will give brain thing

If jaime wants to find 60% of 320, which table should he use?

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?

Combine the information in the problem and the chart using the average balance method to solve the problem.