Revenue Canada estimates that the likelihood of a citizen correctly completing his tax return is 0.26; that the probability that he will make errors that the advantage is 0.45; that the probability that he will make errors that benefit the government is 0.15; and that the probability that it does both types errors is 0.14. 1. If 15 tax returns are randomly selected, what is the probability ability to find 6 correctly completed, 3 containing errors that benefit the citizen, 4 of the mistakes that benefit the government and 2 containing both types of errors? 2. If we select 1000 tax returns at random, how many should we hope to find correctly filled ones?