the mean of n items is x . if the first term is increased by 1 , second by 2 and so on, then the new mean will be?
a- x +n
b- x+n/2
c - x+n+1/2
d- none of these
the mean of n items is x . if the first term is increased by 1 , second by 2 and so on, then the new mean will be?
a- x +n
b- x+n/2
c - x+n+1/2
d- none of these