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.
Rico Suave (song) From Wikipedia, the free encyclopedia. Rico Suave is a 1990 single by Ecuadorian rapper and singer Gerardo. It appeared on his 1991 album Mo' Ritmo. The track peaked at #7 on Billboard's Hot 100 chart on April 13, 1991, and reached #2 on the Hot Rap Singles chart a week earlier. In the song, the narrator tells of his luck with women and his lady-loving lifestyle.