III.13. Languages in Canada. Canada has two official languages: English and French. Choose a resident of Quebec at random and ask, “What is your mother tongue?’’ Here is the distribution of responses, combining many separate languages from the province of Quebec:
| Language: | English | French | Other |
| Probability: | 0.083 | 0.789 | ? |
(a) What is the probability that a randomly chosen resident of Quebec’s mother tongue is either English of French? (Hint: See page 429.)
(b) What is the probability that a randomly chosen resident of Quebec’s mother tongue is “Other”? (Hint: See page 429.)