Heads bins	Frequency F	Relative Frequency p(x)	x*P(x)
7	20	0.0174	0.1215
6	78	0.0677	0.4063
5	190	0.1649	0.8247
4	315	0.2734	1.0938
3	314	0.2726	0.8177
2	173	0.1502	0.3003
1	52	0.0451	0.0451
0	10	0.0087	0.0000
Sums:	1152	1.0000	3.6094
1	1152
2	symmetrical
3	0.27
4	3.61