00:01
Hello student for all this course here we have to estimate a pearson correlation coefficient.
00:13
So here first we need to calculate the sum of all observation in x.
00:19
So here summation of x is equals to 25 and here summation of y which is equals to 15 and here n is equals to 5.
00:31
So here x bar is calculated as sum of all observations divided by n.
00:36
So here x bar is equals to 5 and here y bar is equals to 3.
00:41
Now here we have to find out ss xx.
00:46
So here ss xx is calculated as equal to summation of x minus x bar square.
00:57
Now here all the observation we have given for x.
01:02
So here 5 minus 5 square plus 5 minus 5 square plus 6 minus 5 square plus 6 minus 6 square plus 5 minus 5 square.
01:24
So solving it will gives the value which is equal to 6.
01:28
Now in the next bit here we have to find out ss y which is calculated as summation of y minus y bar square.
01:41
So here 6 minus 3 square...