if the probability of someone carching fku in a particular winter when they have been given the flu vaccine is 0.1 without the vaccine the probability of gettin flu is 0.4 if 30 % of population has...

if the probability of someone carching fku in a particular winter when they have been given the flu vaccine is 0.1 without the vaccine the probability of gettin flu is 0.4 if 30 % of population has vaccine a person chosen at random getting flu probability is what?