00:01
Hi, i'm david and i'm here to help you answer your question.
00:04
Now let me pick up your question here.
00:08
In the question here, we are given the dataset and from this dataset we need to find the range, the variance and the standard division.
00:18
But this one will be the population therefore here.
00:22
The first thing we want to find will be the range and the formula will be the maximum value we minus the minimum value.
00:29
We see from the list of the data there.
00:32
With the maximum value equal to the 16, the minimum will be the 7.
00:38
So get equal to the 9, and that will be the answer for the range.
00:47
Now to find the population's variant and population standard division, we need to find the variance first.
00:54
For the population sigma s square, it will be the sigma square here.
01:04
It will be the summation on the xx.
01:08
I minus the xbore divided by the n.
01:12
And look at the formula, we will need to find the x bar first.
01:16
So x bar just equal to the sum of everything we divide by the number of the data set.
01:21
So we have the 7 plus 11 plus dot dot until the last value will be 12 there.
01:27
We divide by 1, 2, 3, 4, 6, 7, 8, 9, 10.
01:32
So it will compute...