Speeding Up Weighted Average Calculations? studying, averages, function, computer

NakedPuts

is there a function im missing somewhere on either the ba2 plus pro or hp 12c that would allow for quicker computations of weighted averages? its so nice when studying at a computer to be able to quickly =sumproduct these things and sadly thats not an option on the exam

canadiananalyst

It is there! look at the blue lettering on key "6" it is Xw for weighted average, for example:

value1 enter weight-Factor1 and Sigma Plus key
value2 enter weight-Factor2 and Sigma Plus key
value2 enter weight-Factor2 and Sigma Plus key

then press g+6

mar350

like a g6...

mik82

awesome, i totally overlooked that. thanks so much!