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.
Other artists have recorded Ian's compositions, including Roberta Flack, who had a hit in 1973 with Ian's song Jesse. Ian's own version is included on the 1974 album Stars (the title song of which has also been oft-covered, including versions by Joan Baez, Shirley Bassey, Cher, Nina Simone and Barbara Cook).