Pick the meaning of each symbol below:

$\displaystyle \mu$    Select an answer Sample Mean Sample Proportion Population Mean Population Proportion

$\displaystyle \hat{{p}}$    Select an answer Sample Mean Sample Proportion Population Mean Population Proportion

$\displaystyle \rho$     Select an answer Sample Mean Sample Proportion Population Mean Population Proportion

$\displaystyle \overline{{x}}$    Select an answer Sample Mean Sample Proportion Population Mean Population Proportion