Find the volume of the figure below. Round to the nearest tenth if needed. PLEASE HELP

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

Can somebody me out with this question

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11