What is the mode and median 24,4,37,56,6,45

There is no mode because all of the numbers occur within the set at the same frequency of 1. To find the median, line up all of the numbers in numerical order and cross them off from each side working towards the middle. In this case, because there are an even number of numbers in this sequence, you have to find the average of the remaining middle two, which in this case was 24 and 37. You add 24 and 37 and divide by two to get 30.5.