Question 114721
To find the mean, add up all of the numbers and divide the sum by the number of numbers (which in this case is 6).

{{{Mean=(-6+-3+1+5+9+18)/6=24/6=4}}}


So the mean is 4



To find the median, count off about 3 spaces (just take half of the size of the list, which is 6) from the beginning of the list until you hit the middle. Now count count off about 3 spaces from the end of the list until you hit the middle.

-6, -3, {{{highlight(1)}}}, {{{highlight(5)}}}, 9, 18

Since the middle is in between the numbers 1 and 5, add them up and divide that sum by 2.

{{{Median=(1+5)/2=6/2=3}}}


So the median is 3