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.
T.O.N.Y. is a song by American singer Solange Knowles. It was written and produced by Jack Splash and Cee-Lo Green for her second studio album Sol-Angel and the Hadley St. Dreams (2008) and released on March 31, 2009 as the album's third and final single (see 2009 in music).