I need help coding sample standard deviation on vba macro.

Develop a Microsoft Excel workbook that provides the user the opportunity to enter a data set for a single random variable by providing the number of observations in the set along with the list of data values. The user should then be able to compute the sample mean, the sample maximum, the sample minimum, the sample range, and the sample standard deviation using a VBA macro. The user should execute the macro using a form control command button, and code (with meaningful comment) should be contained in a module. Your workbook should contain a second command button that is used to clear the workbook for another example