We want to find out what proportion of the students at a large university prefer NRK's daily review for daily news. Of a random sample of 150 students, 84 preferred NRK's daily review. Find an approximate 90% confidence interval for the proportion of all students who prefer the NRK daily review. (Use 3 decimal places

A company has 30 employees, of whom 12 drive electric cars. A random sample of 8 employees is taken. What is the probability that the sample contains exactly 5 of the 12 who drive an electric car? (Use 3 decimal places