If the mean of the distribution is 2.6, then the value of y is
24
13
8
3
Mean =∑i=1n fixi∑i=1n fi∴2.6=1×4+2×5+3×y+4×1+5×24+5+y+1+2⇒31.2+2.6y=28+3y⇒0.4y=3.2⇒y=8