Solving for population and sample mean using HP12C.

CFA Level I
#1

To those using HP12C… how do you get the population mean and sample mean?

I think i’ve gotten the population mean, but not the sample mean.

#2

The calculations are identical: (ΣX_i_)/n.

#3

The formula for sample variance and population variance are the different. Also the formula for sample standard deviation and population standard deviation.

I thought population mean and standard mean would also be different. Anyway, thanks for the help.