Question BI (a) In a certain city, 71% of the companies have applied for financial aids from the government last year. (i) Find the probability that among 6 randomly selected companies in this city, more than half of the selected companies have applied for financial aids from the government last year. Correct your answer to 4 decimal places. (4 marks) (ii) A random sample of 10 companies is selected from this city. Let Y be the number of the companies in the sample that have applied for financial aids from the government last year. Find the mean and variance of the random variable Y. (4 marks)