At a local store, orange juice can be purchased in a value pack. This table represents the number of value packs purchased and the number of bottles of orange juice. Number of value packs purchased: 2 7 11 13
Total bottles of orange juice: 8 28 44 52

What is the unit rate?
(bottles of orange juice per value pack)

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?