Nothing
p.hat <- 0.80; p.hat
p.hat * 400 # check >= 10
(1 - p.hat) * 400 # check >= 10
SE <- sqrt(.80 * .20 / 400); SE
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.