00:01
All right, so i see that you need help with this problem.
00:03
And the first thing that i did was i placed these numbers in order from least to greatest.
00:08
And the first thing that it wanted you to find was the median.
00:12
I'm sorry, the mean.
00:14
And so you had to add up all of these numbers.
00:16
So the total of all the numbers is 454, then divide it by 15.
00:22
And the mean rounded to two decimal places is 30 .27.
00:29
And then it wanted you to find the median.
00:32
So the median is 28.
00:38
So 28 is the median.
00:41
And that means that the minimum is 15.
00:44
And the maximum is 66.
00:49
And so then it wanted you to find the variance.
00:55
And what you had to do is you have to take each number and you have to subtract the mean and square it and then add that to the next number.
01:07
So you do that for each number...