00:01
Now, x and y are two random variables.
00:05
So, e of y is equal to mu and e of y square is equal to less than infinity.
00:13
Let now a part let g of c is equal to e to the power y minus c whole square.
00:22
This is equation 1.
00:23
If we expand that, then we will get g of c is equal to e to the power py square minus 2yc plus c square.
00:34
Now, g of c is equal to e of y square minus 2c e of y plus c square.
00:43
So, e 2yc is equal to 2c e y and e of c square is equal to c square.
00:56
This is equation 2.
00:57
Differentiating with respect to c, we will get dgc divided by d of c is equal to minus 2ey plus 2c.
01:08
This is equation 3...