Question

Can anyone explain me this in statistics
ΣFiXi/ΣFi

Answer 1

ΣFiXi/ΣFi= sum of the observations/number of observations

Answer 2

x is table 1 and y is table
to get answer we write in form of fixi/fi first we want to add xi number and fi number we take only fi get the number in these way we can get answer