Question 1132767
mean is 6*0.18 or 1.08
variance is 6*0.18*0.82 or 0.8856
sd is sqrt (V)=0.9410.

probability of exactly 3 is 6C3*0.18^3*0.82^3=0.0643

probability of 0 is 0.82^6=0.3040
probability of 1 is 6*0.18*0.82^5=0.4004
So probability at most 1 is the sum or 0.7044.

probability of at least 2 sales is 1-probabilty of at most 1 or 0.2956