00:01
Here we are considering 5 set of observations.
00:04
So the observations are 3, 6, 11, 2, 18 and y values are 50, 50, 40, 60, 30.
00:14
Now based on this first we will plot the scatter diagram.
00:18
So x values, y values and here we can have 2, 4, 6, 8 etc up to 18 and in y axis we can have 10, 20, 30, 40, 50, 60, 70 etc.
00:38
So the first one is 350, next one is 650, then 1140, 260, then 1830.
00:53
So this is the scatter diagram for the given data.
00:59
Hence from this we can say that there exist a negative linear relationship between x and y.
01:07
Then next one we have to find the covariance of x, y which is 1 by n minus 1 summation xi yi minus summation xi summation yi divided by n.
01:22
So now write the x and y values...