Question 840789
{{{P(Make two)=0.89*0.89=0.7921}}}
{{{P(Make one)=0.89*0.11+0.11*0.89=0.0979+0.0979=0.1958}}}
{{{P(Make zero)=0.11*0.11=0.0121}}}
If you add all the probabilities together, they add up to 1. Since these are the only three possible outcomes.