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.
Lead singer Laurie Sargent. They did the music for the movie Streets of Fire with Diane Lane, but were replaced on the soundtrack album (due to contractual issues, I believe). The Graces - Three ladies including Charlotte Caffey of the GoGos and Merideth Brooks (of I'm A Bitch Fame).