Hello ! I've just been doing some questions on probability and I've come across this one which I can't seem to figure out 
all help is appreciated, thanks !
The question: Mia has a probability of 0.7 of passing her English exam, a probability of 0.8 of passing her mathematics exam and a probability of 0.9 of passing her geography exam. What is the probability Mia passes at least two of her exams?
all help is appreciated, thanks !The question: Mia has a probability of 0.7 of passing her English exam, a probability of 0.8 of passing her mathematics exam and a probability of 0.9 of passing her geography exam. What is the probability Mia passes at least two of her exams?