00:01
All right, hi.
00:01
So we have a pretty simple linear approximation question.
00:06
We have a table that shows the population of nepal as of june 30th of the given year.
00:11
We must use linear approximation to estimate populations for the mid -year of 1989 and 2010.
00:18
And get very well and you just start with our approximation of 1989.
00:37
And so what we do is we start from the year that the data that we had right before 1989, so our population at 1985.
00:52
And then we add our rate of change around that time.
00:58
So change in population over change in times our times our change in year.
01:23
And that is the total change from 1985 to 1989.
01:27
And i can show you that right there.
01:28
So population of 1985, 17 .04 million plus the change in population from 1885 to 1990.
01:39
So that is 19 .33 million minus 17 .04 million divided by the change in year.
01:50
So that's 1990 minus 1985 times the changing year.
02:00
So we're, we want 1989 having started from 1985.
02:10
This is how you do linear approximation.
02:13
And then we can quickly solve for this, 70 .4 plus 2 .29 over 5.
02:28
Times four.
02:31
And did i save that? i think i did.
02:34
Yes.
02:37
And that's a four.
02:38
I hope that's seeable.
02:41
That is equal to 18 .872 .87.
02:50
That is our approximation...