Find the difference using the number !

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?

What is the probability of rolling a single die greater than 4

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36