Question 1081098
a.  7C3*.65^3*.35^4=35*.275*.015=0.1442
b. 7C4*65^4*.35^3=0.2679
7C5*.65^5*.35^2=0.2985
7C6*.65^6*.35=0.1848
.65^7=0.0490
Total is 0.8002
c.is 0.0490
d. E(X)=7*0.65=4.55