Statistical
# MEAN :- 1. Direct method. ( discrete method) 2. Shortcut method. 3. Step deviation method. Arithmetic Mean :- _ Formula = x = £x / x Q. 1 find arithmetic mean of 1,2,3,4,8 ? _ Solution :- x = 1+2+3+4+8 / 5 _ x = 18/5 _ x = 3.6 Series question :- 1 method :- { Direct method } ...