The median issimplythe middle value of an ordered set. In this case, and even set, the middle is halfway between 7 and 8. In otherwords, 7.5
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7.5
The median of a set of numbers is the middle one (if there are an odd number of them) or the mean average of the middle two (if there are an even number of them). The dataset {4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 8, 9, 10, 11} has 14 elements, so the median is the mean average of the 7th and 8th numbers. The 7th and 8th numbers are 7 and 7, thus the median is (7 + 7) / 2 = 7.
First, to find median put numbers in order so: 5, 5, 6, 7, 8, 9, 10, ( 10, 12 ,) 14, 15, 17, 18, 18, 18, 20 10 + 12= 22 divided by 2= 11, the median is 11
The median is the middle number when they are in order, so that is 8.
As there are 6 numbers, the median is half way between the middle numbers, or (7+9) / 2 = 8