Say that 65% of all Canadians are worried about the environment, 60% of all Canadians voted in the last election, and 50% of all Canadians are both worried about the environment and voted in the last election. (a) Say you choose a Canadian at random. What is the probability that they are worried about the environment or voted in the last election?(b) Say you choose a Canadian at random. What is the probability that they are worried about the environment, but didn't vote? (c) Say you choose a Canadian at random. What is the probability that they are neither worried about the environment nor voted in the last election?