Re: HP20b's 1variable weighted function Message #7 Posted by Gene Wright on 30 Apr 2010, 11:09 a.m., in response to message #6 by Ric Lombardo
True, but the frequency statistics have a much greater breadth to them than the basic "weighted average".
To get a weighted average is actually pretty easy and requires rethinking the input only slightly.
If you have a random variable with a 40% chance of 10 and a 60% chance of 5, you can of course input the weights as 40 and 60 in 1 Freq mode or even as 4 and 6 in 1 Freq mode and the Descriptive submenu reports the correct mean.
