Question 328782
For all the probability of all 5 flights being on time, the probability of each flight has to be 
{{{0.9=P*P*P*P*P=P^5}}}
{{{P=0.9^(1/5)}}}
{{{P=0.979}}}
So then the probability of each flight being late is
{{{P=1-0.979=0.021}}}