<PRE><B>Question 1188968</B>
the mean is 4.073 heads
-
np=mean, so 4.073/7=0.5819 probability 
sd is sqrt(V)=sqrt(4.073*0.4181)=1.304
So it is B(h)~(7, 0.5819)
-
0 heads 0.4181^7*259=0.58
1 head 7*0.4181^6*0.5819*259=5.64
2 heads 21*0.4181^5*0.5819^2*259=23.53
3: 35*0.4181^4*0.5819^3*259=54.58
4: 35*0.4181^3*0.5819^4*259=75.96
5: 21*0.4181^2*0.5819^5*259=63.43
6: 7*0.4181*0.5819^6*259=29.43
7:  0.5819^7*259=5.85

</PRE>