Make a number collection,any7-12numbers of your choice.

then Arrange them in order and find Median and Mean.

and Calculate Sample Variance and Standard Deviation for your sample.

To findVariance and Standard Deviation on Excel:One way sample variance and sample standard deviation can be calculated on Excel:Open a spreadsheet. enter data in first column.Lets say data is3,6,8,12,16,17,20,23,24.It would be entered in cells A1 to A9. Go toFormulas at top ribbon,More Functions, Statistical,Scroll to var.s for sample variance.In No.1 dialog box enter cell range A1:A9.Note the variance value appears in bottom right of dialog box. (56.75)Repeat to find standard deviation. Scroll tostdev.s for sample standard deviation. (7.533).