Remember that we already learned about the standard error .... The standard error of the sample mean is given by the following equation: $$\sigma_\bar{y} = \frac{\sigma}{\sqrt{n}} $$. In the above equation, $\sigma$ is the population standard deviation. But like $\mu$, $\sigma$ is an unknown parameter.
Alicia Keys and and Jack White to Sing Quantum of Solace Theme Song. The news does not come as a shock to Bond fans, as Universal Exports first reported the possibility of Alicia Keys singing the Quantum of Solace theme song back on July 11, 2008.
Pressly's ``Earl'' co-star Nadine Velazquez took home the prize for most moxie, belting out ``Do the Conga'' and improvising funny lyrics as she forgot the real ones; Emily Deschanel (``Bones'') warbled ``Almost Paradise'' with co-star Eric Millegan; Glenn Howerton from ``It's Always Sunny in Philadelphia'' wowed the packed theater with an impressive version of ``Ziggy Stardust''; and ``Passions'' star Eric Martsolf made disco fever look good with a rousing rendition of ``Night Fever ...