00:02
In this problem, in b part correlation coefficient, that is r is equal to summation of of x minus m y, y minus m x divided by root s s x and s y and s y, which is 0 .9374 and in the c.
00:48
Part, the coefficient of determination that is r square, 0 .9374, the square, which is 0 .8787.
01:13
And in first part, we have to make a graph that is in 1980 here 1990 2000 2010 2010 2010 2020 2010 2020 2020 20 30 2040 that is we can say number of employee and this site is 100 hundred five hundred ten hundred ten 115, 120, 125, 135, 130, 130, 130, 135, 140, 140, 145, 145, and 150, 150, 150, 155, and so on.
02:29
Here is the sales.
02:34
Now, the graph is this and on 2010 its value is 110 and on 9 it goes to 120 then on 20 then on 20 it is 120 it is 130 then on 25 it is on 30 5 it is on 30 it is on 30 and again it is is 150.
03:28
Now in d part b is equal to sp over ssx that is 3599 divided by 5219 .43 which is equal to 0 .6899 and a is equal to mi -y minus vmx...