You find the mean by adding the numbers and dividing by 5 so the mean is 15.4
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To find the median of a set of numbers, you first need to arrange them in numerical order. In this case, the numbers are 10, 12, 19, 18, 12, 13, and 12. When arranged in ascending order, the numbers become 10, 12, 12, 12, 13, 18, 19. Since there are seven numbers in the set, the median is the middle number, which in this case is the fourth number, which is also 12. Therefore, the median of the given set of numbers is 12.
10 7 11 12 9 13 14 11 15 16 13 17 18 15 19 20...
12
14
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and 20