If its a even number of numbers, find the average of the middle two.
= 9.5
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The median is the number in the middle - same number of places from either left or right. You have 7 numbers, so median is the 4th from either side - the median is 9
The median is the "middle" so put them in order first.1, 4, 5, 9, 10, 15You will notice that you have an even amount of numbers and surely will have two medians: 5 and 9. Find their average and the median of this set in 7.
The median is 13.
Mean: 13.6 Median: 15 Mode: 16, 18, 15, 9, 10
First put them in ascending order. 1, 5, 7, 9, 9, 12, 14, 15, 18 Mean is 10 Median is 9 Mode is 9 Range is 17