Re: [R] on the growth of standard error

2020-08-22 Thread Abby Spurdle
> The absolute > value of e grows as L grows, but by how much? It seems statistical > theory claims it grow by an order of the square root of L. Assuming you want the standard deviation for the number of successes, given p=0.5: #exact 0.5 * sqrt (n) #numerical approximation sd (rbinom (1e6, n,

Re: [R] on the growth of standard error

2020-08-22 Thread Bert Gunter
+ (in addition to Jeff's link) https://en.wikipedia.org/wiki/Binomial_distribution Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sat, Aug 22, 2020 at 6:50 AM

Re: [R] on the growth of standard error

2020-08-22 Thread Jeff Newmiller
stats.stackexchange.com On August 21, 2020 1:25:06 PM PDT, Wayne Harris via R-help wrote: > >I'm intested in understanding why the standard error grows with respect >to the square root of the sample size. For instance, using an honest >coin and flipping it L times, the expected number of HEADS

[R] on the growth of standard error

2020-08-22 Thread Wayne Harris via R-help
I'm intested in understanding why the standard error grows with respect to the square root of the sample size. For instance, using an honest coin and flipping it L times, the expected number of HEADS is half and we may define the error (relative to the expected number) to be e = H - L/2, whe