Question 1160898
This is 6C4*0.8^4*0.2^2=0.2458 for 4
6C3*0.8^3*0.2^3=0.0819
for the third, look at 4,5,6.  We have 4 above
5 is 0.3932
6 is .8^6=0.2621
Those three sum to 0.9011