00:01
Okay, in this question we want to determine some of the basic stats on variables, so the mean, median, and finally the mode of a dataset, we'll call that dataset a with numbers 55, 47, 80, 69, 21, 21 again, and finally 59, and there should be total of 7, and there does look like there is some in there.
00:32
Okay, so basically the mean is quite easy to solve.
00:36
It is simply the summation of the dataset, which means adding up all of these numbers right here.
00:43
And over the total number of values of the data set, which is n, so let's go ahead and add up all these values.
00:49
I'm going to use a calculator here.
00:51
So 55 plus 47 plus 80, plus 69, plus 21, plus 21, plus 59, is equal to 352.
01:01
Since there's seven in the dataset, seven numbers, we n is equal to seven.
01:07
Now once we divide 32 by 7, we get 50 .29 as the average here.
01:15
And media is simply just finding that number in the middle...