There is an example on the normal approximation for binomial distribution.
Given n =10, p = 0.2.
We calculate binomial distribution from k=0 to k=6.
... and so on.
The normal approximation is given as:
...... and so on.
Ok, I've been trying to figure out how to arrive at normal approximations given above, but to no avail.
Do I use:
which is different from the answer given.
I thank you for your comments. This is a particularly vexing problem, as I want to thoroughly understand the inner workigs of Normal Approximations.