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 White Stripes singer Jack White are to record the theme for new James Bond film Quantum of Solace. Jack White and Alicia Keys will collaborate on the new James Bond film theme Photo: JOHN TAYLOR/PA. By Anita Singh, Showbusiness Editor. 11:24AM BST 30 Jul 2008.
Paul Daniel Ace Frehley (/ËfreÉªli/; born April 27, 1951) is an American musician and songwriter best known as the former lead guitarist and founding member of the rock band Kiss. He invented the persona of the Spaceman or Space Ace and played with the group from its inception in 1973 until his departure in 1982.