标题: keystroke for sample standard deviation HP 12C [打印本页] 作者: mfleming1983 时间: 2011-7-11 18:42 标题: keystroke for sample standard deviation HP 12C
can some one help on this.
thanks作者: bluejazzy 时间: 2011-7-11 18:42
Input the numbers using the Sigma+ button and then press g and decimal point (letter s in blue). That gives sample std dev. For population std dev press g and 0 (x bar in blue) and then add that to the other group of numbers (sigma +) and then press g and decimal again.作者: nitoha 时间: 2011-7-11 18:42
thanks DTM86作者: marsilni 时间: 2011-7-11 18:42
how to calculate the covariance and the portfolio variance? any idea?
